diff --git a/.github/workflows/PR-4.x.yaml b/.github/workflows/PR-4.x.yaml
index cb0c812746..788a5b6df1 100644
--- a/.github/workflows/PR-4.x.yaml
+++ b/.github/workflows/PR-4.x.yaml
@@ -6,24 +6,21 @@ on:
       - 4.x
 
 jobs:
+
+  Linux:
+    uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-Linux.yaml@main
+    with:
+      workflow_branch: main
+
   Ubuntu2004-ARM64:
     uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-ARM64.yaml@main
 
   Ubuntu2004-ARM64-Debug:
     uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-ARM64-Debug.yaml@main
 
-  Ubuntu2004-x64:
-    uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U20.yaml@main
-
   Ubuntu2004-x64-OpenVINO:
     uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U20-OpenVINO.yaml@main
 
-  Ubuntu2204-x64:
-    uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U22.yaml@main
-
-  Ubuntu2404-x64:
-    uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U24.yaml@main
-
   Ubuntu2004-x64-CUDA:
     if: "${{ contains(github.event.pull_request.labels.*.name, 'category: dnn') }} || ${{ contains(github.event.pull_request.labels.*.name, 'category: dnn (onnx)') }}"
     uses: opencv/ci-gha-workflow/.github/workflows/OCV-PR-4.x-U20-Cuda.yaml@main