diff --git a/.github/workflows/block-merge-eol.yml b/.github/workflows/block-merge-eol.yml
index 8c7653eac..5f34853ba 100644
--- a/.github/workflows/block-merge-eol.yml
+++ b/.github/workflows/block-merge-eol.yml
@@ -20,7 +20,7 @@ jobs:
 
     # Only run on stableXX branches
     if: startsWith( github.base_ref, 'stable')
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-low
 
     steps:
       - name: Download updater config
diff --git a/.github/workflows/block-merge-freeze.yml b/.github/workflows/block-merge-freeze.yml
index f2d029c99..2e4b3e25d 100644
--- a/.github/workflows/block-merge-freeze.yml
+++ b/.github/workflows/block-merge-freeze.yml
@@ -22,11 +22,15 @@ jobs:
 
     if: github.event.pull_request.draft == false
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-low
 
     steps:
-      - name: Download version.php from ${{ github.base_ref }}
-        run: curl https://raw.githubusercontent.com/nextcloud/server/${{ github.base_ref }}/version.php --output version.php
+      - name: Register server reference to fallback to master branch
+        run: |
+          server_ref="$(if [ "${{ github.base_ref }}" = "main" ]; then echo -n "master"; else echo -n "${{ github.base_ref }}"; fi)"
+          echo "server_ref=$server_ref" >> $GITHUB_ENV
+      - name: Download version.php from ${{ env.server_ref }}
+        run: curl https://raw.githubusercontent.com/nextcloud/server/${{ env.server_ref }}/version.php --output version.php
 
       - name: Run check
         run: cat version.php | grep 'OC_VersionString' | grep -i -v 'RC'
diff --git a/.github/workflows/fixup.yml b/.github/workflows/fixup.yml
index 9548d19f2..98d49927a 100644
--- a/.github/workflows/fixup.yml
+++ b/.github/workflows/fixup.yml
@@ -24,7 +24,7 @@ jobs:
       pull-requests: write
     name: Block fixup and squash commits
 
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-low
 
     steps:
       - name: Run check