When Google originally launched Google Play Games for PC, the system image they shipped was based on Android 11. After the beta went live in the US and other countries a few days back, I noticed they updated the system image to be based on Android 12L.
(Google Play Games for PC builds declare the com.google.android.play.feature.HPE_EXPERIENCE feature, which is how you can distinguish between it from other devices.)
(Google Play Games for PC builds declare the com.google.android.play.feature.HPE_EXPERIENCE feature, which is how you can distinguish between it from other devices.)