diff --git a/.github/workflows/phpunit-tests.yml b/.github/workflows/phpunit-tests.yml
index 2b9bbfe891640..94a2ddf187d9e 100644
--- a/.github/workflows/phpunit-tests.yml
+++ b/.github/workflows/phpunit-tests.yml
@@ -53,14 +53,8 @@ permissions: {}
 
 jobs:
   # Downloads and verifies the Gutenberg build once for all PHPUnit jobs.
-  #
-  # This condition is the union of the conditions on the jobs that need it, reduced.
-  # The org matrices require `WordPress/wordpress-develop` or a pull request, and the
-  # fork matrix requires a pull request, so `wordpress-develop` or a pull request
-  # covers every case. Keep it in step with those jobs: a narrower condition orphans
-  # them, because a job that needs a skipped job is skipped too, and a broader one
-  # downloads a build that nothing consumes.
   prepare-gutenberg:
+    name: Prepare Gutenberg Assets
     uses: ./.github/workflows/reusable-prepare-gutenberg.yml
     permissions:
       contents: read
@@ -144,7 +138,7 @@ jobs:
       phpunit-config: ${{ matrix.multisite && 'tests/phpunit/multisite.xml' || 'phpunit.xml.dist' }}
       tests-domain: ${{ matrix.tests-domain }}
       report: ${{ matrix.report || false }}
-      gutenberg-artifact: gutenberg-build
+      gutenberg-artifact: ${{ needs.prepare-gutenberg.result != 'skipped' }}
       gutenberg-sha: ${{ needs.prepare-gutenberg.outputs.gutenberg-sha }}
 
   #
@@ -200,7 +194,7 @@ jobs:
       memcached: ${{ matrix.memcached }}
       phpunit-config: ${{ matrix.multisite && 'tests/phpunit/multisite.xml' || 'phpunit.xml.dist' }}
       report: false
-      gutenberg-artifact: gutenberg-build
+      gutenberg-artifact: ${{ needs.prepare-gutenberg.result != 'skipped' }}
       gutenberg-sha: ${{ needs.prepare-gutenberg.outputs.gutenberg-sha }}
 
   #
@@ -250,7 +244,7 @@ jobs:
       memcached: ${{ matrix.memcached }}
       phpunit-config: ${{ matrix.multisite && 'tests/phpunit/multisite.xml' || 'phpunit.xml.dist' }}
       report: false
-      gutenberg-artifact: gutenberg-build
+      gutenberg-artifact: ${{ needs.prepare-gutenberg.result != 'skipped' }}
       gutenberg-sha: ${{ needs.prepare-gutenberg.outputs.gutenberg-sha }}
 
   #
@@ -285,7 +279,7 @@ jobs:
       db-type: ${{ matrix.db-type }}
       db-version: ${{ matrix.db-version }}
       phpunit-test-groups: ${{ matrix.phpunit-test-groups }}
-      gutenberg-artifact: gutenberg-build
+      gutenberg-artifact: ${{ needs.prepare-gutenberg.result != 'skipped' }}
       gutenberg-sha: ${{ needs.prepare-gutenberg.outputs.gutenberg-sha }}
 
   #
@@ -350,7 +344,7 @@ jobs:
       memcached: ${{ matrix.memcached || false }}
       phpunit-config: ${{ matrix.multisite && 'tests/phpunit/multisite.xml' || 'phpunit.xml.dist' }}
       phpunit-test-groups: ${{ matrix.phpunit-test-groups || '' }}
-      gutenberg-artifact: gutenberg-build
+      gutenberg-artifact: ${{ needs.prepare-gutenberg.result != 'skipped' }}
       gutenberg-sha: ${{ needs.prepare-gutenberg.outputs.gutenberg-sha }}
 
   slack-notifications:
diff --git a/.github/workflows/reusable-phpunit-tests-v3.yml b/.github/workflows/reusable-phpunit-tests-v3.yml
index 6a7f49fba468c..1c09113810dd3 100644
--- a/.github/workflows/reusable-phpunit-tests-v3.yml
+++ b/.github/workflows/reusable-phpunit-tests-v3.yml
@@ -73,10 +73,10 @@ on:
         type: boolean
         default: false
       gutenberg-artifact:
-        description: 'The name of a same-workflow artifact containing the prepared Gutenberg build. Optional: callers that omit it download Gutenberg per job.'
+        description: 'Whether the Gutenberg-sourced assets are sourced from zip artifact.'
         required: false
-        type: string
-        default: ''
+        type: boolean
+        default: false
       gutenberg-sha:
         description: 'The immutable Gutenberg source SHA verified by the calling workflow.'
         required: false
@@ -146,14 +146,12 @@ jobs:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false
 
-      # Branches >= 5.9 call this workflow at @trunk without the producer job, so they
-      # pass no artifact. They skip this step and fall back to a per-job download.
+      # Only WordPress 7.0+ include Gutenberg-maintained assets from a built zip file.
       - name: Download prepared Gutenberg build
-        if: inputs.gutenberg-artifact != ''
+        if: ${{ inputs.gutenberg-artifact }}
         uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
         with:
-          # Without a run ID, this action reads only from the caller's current workflow run.
-          name: ${{ inputs.gutenberg-artifact }}
+          name: gutenberg-build
           path: gutenberg
           digest-mismatch: error