diff --git a/phpstan/baseline.neon b/phpstan/baseline.neon
index 1dfceca48..a3f616c0c 100644
--- a/phpstan/baseline.neon
+++ b/phpstan/baseline.neon
@@ -12,11 +12,6 @@ parameters:
 
 		-
 			message: "#^Casting to bool something that's already bool\\.$#"
-			count: 6
-			path: ../src/Composer/Autoload/AutoloadGenerator.php
-
-		-
-			message: "#^Casting to string something that's already string\\.$#"
 			count: 1
 			path: ../src/Composer/Autoload/AutoloadGenerator.php
 
@@ -65,14 +60,9 @@ parameters:
 			count: 1
 			path: ../src/Composer/Autoload/AutoloadGenerator.php
 
-		-
-			message: "#^Only booleans are allowed in a negated boolean, mixed given\\.$#"
-			count: 1
-			path: ../src/Composer/Autoload/AutoloadGenerator.php
-
 		-
 			message: "#^Only booleans are allowed in a negated boolean, string given\\.$#"
-			count: 4
+			count: 3
 			path: ../src/Composer/Autoload/AutoloadGenerator.php
 
 		-
@@ -157,7 +147,7 @@ parameters:
 
 		-
 			message: "#^Short ternary operator is not allowed\\. Use null coalesce operator if applicable or consider using long ternary\\.$#"
-			count: 2
+			count: 1
 			path: ../src/Composer/Autoload/AutoloadGenerator.php
 
 		-
@@ -275,11 +265,6 @@ parameters:
 			count: 1
 			path: ../src/Composer/Autoload/ClassMapGenerator.php
 
-		-
-			message: "#^Casting to bool something that's already bool\\.$#"
-			count: 2
-			path: ../src/Composer/Cache.php
-
 		-
 			message: "#^Only booleans are allowed in a negated boolean, int given\\.$#"
 			count: 1
@@ -2475,11 +2460,6 @@ parameters:
 			count: 2
 			path: ../src/Composer/Config.php
 
-		-
-			message: "#^Casting to bool something that's already bool\\.$#"
-			count: 1
-			path: ../src/Composer/Config.php
-
 		-
 			message: "#^Construct empty\\(\\) is not allowed\\. Use more strict comparison\\.$#"
 			count: 2
@@ -3745,11 +3725,6 @@ parameters:
 			count: 1
 			path: ../src/Composer/EventDispatcher/EventDispatcher.php
 
-		-
-			message: "#^Casting to bool something that's already bool\\.$#"
-			count: 1
-			path: ../src/Composer/EventDispatcher/EventDispatcher.php
-
 		-
 			message: "#^Construct empty\\(\\) is not allowed\\. Use more strict comparison\\.$#"
 			count: 1
@@ -4010,11 +3985,6 @@ parameters:
 			count: 1
 			path: ../src/Composer/Installer.php
 
-		-
-			message: "#^Casting to bool something that's already bool\\.$#"
-			count: 15
-			path: ../src/Composer/Installer.php
-
 		-
 			message: "#^Only booleans are allowed in &&, array\\<array\\<string, string\\>\\> given on the right side\\.$#"
 			count: 1
@@ -4025,6 +3995,11 @@ parameters:
 			count: 1
 			path: ../src/Composer/Installer.php
 
+		-
+			message: "#^Only booleans are allowed in &&, mixed given on the left side\\.$#"
+			count: 1
+			path: ../src/Composer/Installer.php
+
 		-
 			message: "#^Only booleans are allowed in &&, mixed given on the right side\\.$#"
 			count: 2
@@ -4075,6 +4050,11 @@ parameters:
 			count: 1
 			path: ../src/Composer/Installer.php
 
+		-
+			message: "#^Only booleans are allowed in an if condition, mixed given\\.$#"
+			count: 2
+			path: ../src/Composer/Installer.php
+
 		-
 			message: "#^Only booleans are allowed in \\|\\|, array\\<string\\>\\|null given on the left side\\.$#"
 			count: 2
@@ -4445,11 +4425,6 @@ parameters:
 			count: 4
 			path: ../src/Composer/Json/JsonManipulator.php
 
-		-
-			message: "#^Casting to string something that's already string\\.$#"
-			count: 1
-			path: ../src/Composer/Json/JsonValidationException.php
-
 		-
 			message: "#^Variable method call on Composer\\\\Package\\\\BasePackage\\.$#"
 			count: 1
@@ -4625,21 +4600,11 @@ parameters:
 			count: 2
 			path: ../src/Composer/Package/Dumper/ArrayDumper.php
 
-		-
-			message: "#^Call to function is_string\\(\\) with string will always evaluate to true\\.$#"
-			count: 1
-			path: ../src/Composer/Package/Loader/ArrayLoader.php
-
 		-
 			message: "#^Construct empty\\(\\) is not allowed\\. Use more strict comparison\\.$#"
 			count: 10
 			path: ../src/Composer/Package/Loader/ArrayLoader.php
 
-		-
-			message: "#^Instanceof between Composer\\\\Package\\\\CompletePackage and Composer\\\\Package\\\\CompletePackage will always evaluate to true\\.$#"
-			count: 1
-			path: ../src/Composer/Package/Loader/ArrayLoader.php
-
 		-
 			message: "#^Instanceof between Composer\\\\Package\\\\CompletePackage and Composer\\\\Package\\\\CompletePackageInterface will always evaluate to true\\.$#"
 			count: 1
@@ -4680,11 +4645,6 @@ parameters:
 			count: 1
 			path: ../src/Composer/Package/Loader/ArrayLoader.php
 
-		-
-			message: "#^Call to function is_string\\(\\) with string will always evaluate to true\\.$#"
-			count: 1
-			path: ../src/Composer/Package/Loader/JsonLoader.php
-
 		-
 			message: "#^Parameter \\#1 \\$json of static method Composer\\\\Json\\\\JsonFile\\:\\:parseJson\\(\\) expects string\\|null, string\\|false given\\.$#"
 			count: 1
@@ -5120,11 +5080,6 @@ parameters:
 			count: 1
 			path: ../src/Composer/Plugin/PostFileDownloadEvent.php
 
-		-
-			message: "#^Casting to bool something that's already bool\\.$#"
-			count: 1
-			path: ../src/Composer/Question/StrictConfirmationQuestion.php
-
 		-
 			message: "#^Construct empty\\(\\) is not allowed\\. Use more strict comparison\\.$#"
 			count: 2
@@ -5455,16 +5410,6 @@ parameters:
 			count: 1
 			path: ../src/Composer/Repository/FilesystemRepository.php
 
-		-
-			message: "#^Call to function is_array\\(\\) with array\\<string\\> will always evaluate to true\\.$#"
-			count: 2
-			path: ../src/Composer/Repository/FilterRepository.php
-
-		-
-			message: "#^Call to function is_bool\\(\\) with bool will always evaluate to true\\.$#"
-			count: 1
-			path: ../src/Composer/Repository/FilterRepository.php
-
 		-
 			message: "#^Only booleans are allowed in &&, string\\|null given on the left side\\.$#"
 			count: 1
@@ -6582,7 +6527,7 @@ parameters:
 
 		-
 			message: "#^Call to function is_resource\\(\\) with resource will always evaluate to true\\.$#"
-			count: 4
+			count: 3
 			path: ../src/Composer/Util/Http/CurlDownloader.php
 
 		-
@@ -6860,11 +6805,6 @@ parameters:
 			count: 1
 			path: ../src/Composer/Util/Http/RequestProxy.php
 
-		-
-			message: "#^Casting to int something that's already int\\.$#"
-			count: 1
-			path: ../src/Composer/Util/Http/Response.php
-
 		-
 			message: "#^Anonymous function uses \\$this assigned to variable \\$downloader\\. Use \\$this directly in the function body\\.$#"
 			count: 2
@@ -7140,11 +7080,6 @@ parameters:
 			count: 1
 			path: ../src/Composer/Util/Platform.php
 
-		-
-			message: "#^Casting to string something that's already string\\.$#"
-			count: 1
-			path: ../src/Composer/Util/Platform.php
-
 		-
 			message: "#^Only booleans are allowed in &&, array\\|false given on the left side\\.$#"
 			count: 1
@@ -8088,11 +8023,6 @@ parameters:
 			count: 4
 			path: ../tests/Composer/Test/InstallerTest.php
 
-		-
-			message: "#^Call to function is_array\\(\\) with array\\<Composer\\\\Repository\\\\RepositoryInterface\\> will always evaluate to true\\.$#"
-			count: 1
-			path: ../tests/Composer/Test/InstallerTest.php
-
 		-
 			message: "#^Construct empty\\(\\) is not allowed\\. Use more strict comparison\\.$#"
 			count: 9
diff --git a/src/Composer/Installer.php b/src/Composer/Installer.php
index 31aacde00..6326158dd 100644
--- a/src/Composer/Installer.php
+++ b/src/Composer/Installer.php
@@ -507,23 +507,25 @@ class Installer
                 }
             }
 
-            $this->io->writeError(sprintf(
-                "<info>Lock file operations: %d install%s, %d update%s, %d removal%s</info>",
-                count($installNames),
-                1 === count($installNames) ? '' : 's',
-                count($updateNames),
-                1 === count($updateNames) ? '' : 's',
-                count($uninstalls),
-                1 === count($uninstalls) ? '' : 's'
-            ));
-            if ($installNames) {
-                $this->io->writeError("Installs: ".implode(', ', $installNames), true, IOInterface::VERBOSE);
-            }
-            if ($updateNames) {
-                $this->io->writeError("Updates: ".implode(', ', $updateNames), true, IOInterface::VERBOSE);
-            }
-            if ($uninstalls) {
-                $this->io->writeError("Removals: ".implode(', ', $uninstallNames), true, IOInterface::VERBOSE);
+            if ($this->config->get('lock')) {
+                $this->io->writeError(sprintf(
+                    "<info>Lock file operations: %d install%s, %d update%s, %d removal%s</info>",
+                    count($installNames),
+                    1 === count($installNames) ? '' : 's',
+                    count($updateNames),
+                    1 === count($updateNames) ? '' : 's',
+                    count($uninstalls),
+                    1 === count($uninstalls) ? '' : 's'
+                ));
+                if ($installNames) {
+                    $this->io->writeError("Installs: ".implode(', ', $installNames), true, IOInterface::VERBOSE);
+                }
+                if ($updateNames) {
+                    $this->io->writeError("Updates: ".implode(', ', $updateNames), true, IOInterface::VERBOSE);
+                }
+                if ($uninstalls) {
+                    $this->io->writeError("Removals: ".implode(', ', $uninstallNames), true, IOInterface::VERBOSE);
+                }
             }
         }
 
@@ -550,8 +552,8 @@ class Installer
                 $this->suggestedPackagesReporter->addSuggestionsFromPackage($operation->getPackage());
             }
 
-            // output op, but alias op only in debug verbosity
-            if (false === strpos($operation->getOperationType(), 'Alias') || $this->io->isDebug()) {
+            // output op if lock file is enabled, but alias op only in debug verbosity
+            if ($this->config->get('lock') && (false === strpos($operation->getOperationType(), 'Alias') || $this->io->isDebug())) {
                 $this->io->writeError('  - ' . $operation->show(true));
             }
         }
@@ -655,7 +657,9 @@ class Installer
      */
     protected function doInstall(InstalledRepositoryInterface $localRepo, $alreadySolved = false)
     {
-        $this->io->writeError('<info>Installing dependencies from lock file'.($this->devMode ? ' (including require-dev)' : '').'</info>');
+        if ($this->config->get('lock')) {
+            $this->io->writeError('<info>Installing dependencies from lock file'.($this->devMode ? ' (including require-dev)' : '').'</info>');
+        }
 
         $lockedRepository = $this->locker->getLockedRepository($this->devMode);