diff --git a/lib/internal/Magento/Framework/Cache/Frontend/Adapter/SymfonyAdapters/FilesystemTagAdapter.php b/lib/internal/Magento/Framework/Cache/Frontend/Adapter/SymfonyAdapters/FilesystemTagAdapter.php
index a29ecf7bafbbb..1335809366091 100644
--- a/lib/internal/Magento/Framework/Cache/Frontend/Adapter/SymfonyAdapters/FilesystemTagAdapter.php
+++ b/lib/internal/Magento/Framework/Cache/Frontend/Adapter/SymfonyAdapters/FilesystemTagAdapter.php
@@ -180,13 +180,12 @@ public function getIdsMatchingAnyTags(array $tags): array
             return [];
         }
 
-        $ids = [];
+        $idsPerTag = [];
         foreach ($tags as $tag) {
-            // phpcs:ignore Magento2.Performance.ForeachArrayMerge
-            $ids = array_merge($ids, $this->getTagIds($tag));
+            $idsPerTag[] = $this->getTagIds($tag);
         }
 
-        return array_values(array_unique($ids));
+        return array_values(array_unique(array_merge(...$idsPerTag)));
     }
 
     /**
@@ -218,7 +217,7 @@ public function getIdsNotMatchingTags(array $tags): array
      */
     private function getAllIds(): array
     {
-        $allIds = [];
+        $idsPerTag = [];
         $tagFiles = glob($this->tagDirectory . '*');
 
         if ($tagFiles === false) {
@@ -227,14 +226,11 @@ private function getAllIds(): array
 
         foreach ($tagFiles as $file) {
             if (is_file($file)) {
-                $tag = basename($file);
-                $ids = $this->getTagIds($tag);
-                // phpcs:ignore Magento2.Performance.ForeachArrayMerge
-                $allIds = array_merge($allIds, $ids);
+                $idsPerTag[] = $this->getTagIds(basename($file));
             }
         }
 
-        return array_values(array_unique($allIds));
+        return array_values(array_unique(array_merge(...$idsPerTag)));
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Cache/Frontend/Adapter/SymfonyAdapters/RedisTagAdapter.php b/lib/internal/Magento/Framework/Cache/Frontend/Adapter/SymfonyAdapters/RedisTagAdapter.php
index dc3f9f4433e7a..a725fc4f9e06a 100644
--- a/lib/internal/Magento/Framework/Cache/Frontend/Adapter/SymfonyAdapters/RedisTagAdapter.php
+++ b/lib/internal/Magento/Framework/Cache/Frontend/Adapter/SymfonyAdapters/RedisTagAdapter.php
@@ -408,19 +408,16 @@ public function getIdsMatchingAnyTags(array $tags): array
         // Matches Zend's implementation to prevent Redis slowdowns
         // @see vendor/colinmollenhour/cache-backend-redis/Cm/Cache/Backend/Redis.php line 777-778
         if (count($tags) > self::SUNION_CHUNK_SIZE) {
-            $allIds = [];
+            $idsPerChunk = [];
             $chunks = array_chunk($tags, self::SUNION_CHUNK_SIZE);
 
             foreach ($chunks as $chunk) {
                 $tagKeys = array_map([$this, 'getTagKey'], $chunk);
                 $chunkIds = $this->redis->sUnion($tagKeys);
-                $chunkIds = is_array($chunkIds) ? $chunkIds : [];
-
-                // phpcs:ignore Magento2.Performance.ForeachArrayMerge
-                $allIds = array_merge($allIds, $chunkIds);
+                $idsPerChunk[] = is_array($chunkIds) ? $chunkIds : [];
             }
 
-            return array_unique($allIds);
+            return array_unique(array_merge(...$idsPerChunk));
         }
 
         $tagKeys = array_map([$this, 'getTagKey'], $tags);