@callme_e , From your description, it seems the Google store app is not seen in company portal. If there's any misunderstanding, feel free to let us know.
Before we going on, I would like to confirm which enrollment we used for these device, Android Enterprise or Android device administration?
https://learn.microsoft.com/en-us/mem/intune/apps/apps-add-android-for-work
Meanwhile, could you confirm if the assigned security group is a user group?
Please confirm the above information and if there's any update, feel free to let us know.
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