try to condition the pool

azure-pipelines.yml

@@ -45,6 +45,7 @@ stages:
           image: ${{ image.image }}
           vmImage: ${{ image.vmImage }}
           os: ${{ image.os }}
+        oes: false
   - template: pipeline-templates/upstream-verify.yaml
     parameters:
       pool:

pipeline-templates/build-test.yaml

@@ -3,7 +3,11 @@ parameters:
 
 jobs:
 - job: ${{ parameters.pool.os }}_Build
-  pool: ${{ parameters.pool }}
+  pool:
+    ${{ if eq(parameters.oes, 'true') }}:
+        ${{ parameters.pool }}
+    ${{ else }}:
+        vmImage: ${{ parameters.pool.vmImage }}
   displayName: '🔨 ${{ parameters.pool.os }} Build and Test'
   templateContext:
     outputs: