diff --git a/Classes/Console/Command/Backend/CreateBackendAdminUserCommand.php b/Classes/Console/Command/Backend/CreateBackendAdminUserCommand.php
index e3c15737..4f4da344 100644
--- a/Classes/Console/Command/Backend/CreateBackendAdminUserCommand.php
+++ b/Classes/Console/Command/Backend/CreateBackendAdminUserCommand.php
@@ -25,7 +25,6 @@
 use TYPO3\CMS\Core\Database\Query\Restriction\EndTimeRestriction;
 use TYPO3\CMS\Core\Database\Query\Restriction\HiddenRestriction;
 use TYPO3\CMS\Core\Database\Query\Restriction\StartTimeRestriction;
-use TYPO3\CMS\Core\Information\Typo3Version;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 
 class CreateBackendAdminUserCommand extends Command
@@ -132,17 +131,11 @@ private function validateUsername(?string $username): ?string
              ->removeByType(StartTimeRestriction::class)
              ->removeByType(EndTimeRestriction::class)
              ->removeByType(HiddenRestriction::class);
-        $queryBuilder->count('uid')
+        $userExists = $queryBuilder->count('uid')
             ->from('be_users')
             ->where(
                 $queryBuilder->expr()->eq('username', $queryBuilder->createNamedParameter($username))
-            );
-
-        if ((new Typo3Version())->getMajorVersion() > 11) {
-            $userExists = $queryBuilder->executeQuery()->fetchOne() > 0;
-        } else {
-            $userExists = $queryBuilder->execute()->fetchColumn() > 0;
-        }
+            )->execute()->fetchOne() > 0;
 
         if ($userExists) {
             return sprintf('A user with username "%s" already exists.', $username);
diff --git a/Classes/Console/Core/Booting/Scripts.php b/Classes/Console/Core/Booting/Scripts.php
index 32558051..a91b906b 100644
--- a/Classes/Console/Core/Booting/Scripts.php
+++ b/Classes/Console/Core/Booting/Scripts.php
@@ -21,7 +21,6 @@
 use TYPO3\CMS\Core\Authentication\CommandLineUserAuthentication;
 use TYPO3\CMS\Core\Core\BootService;
 use TYPO3\CMS\Core\Core\Bootstrap;
-use TYPO3\CMS\Core\Information\Typo3Version;
 use TYPO3\CMS\Core\Page\PageRenderer;
 
 class Scripts
@@ -56,10 +55,9 @@ public static function initializeExtensionConfiguration(ContainerInterface $cont
             $bootService->makeCurrent($container);
         }
         $container->get('boot.state')->done = false;
-        $assetsCache = $container->get('cache.assets');
         $coreCache = $container->get('cache.core');
-        if ((new Typo3Version())->getMajorVersion() < 12) {
-            PageRenderer::setCache($assetsCache);
+        if (method_exists(PageRenderer::class, 'setCache')) {
+            PageRenderer::setCache($container->get('cache.assets'));
         }
         Bootstrap::loadTypo3LoadedExtAndExtLocalconf(true, $coreCache);
         Bootstrap::unsetReservedGlobalVariables();