Error: Unable to retrieve FCM token. Are you connected to the Internet?

[suddenwhipvapor]

@devinbileck a user is reporting that the android app doesn't work for him anymore
He tried with both calyxos + microg and graphene (supposedly with containerized gservices installed).
I am asking confirmation about the last thing, and also if possible to try with a normal android version, do you need any data?

[suddenwhipvapor]

Update: graphene had containerized gservices installed.

Application worked while testing on stock oneplus 7 with no updates.

I remember the app working with microg, maybe something changed?