Pay securely with an Android smartphone, completely without Google services: This is the plan being developed by the newly founded industry consortium led by the German Volla Systeme GmbH. It is an open-source alternative to Google Play Integrity. This proprietary interface decides on Android smartphones with Google Play services whether banking, government, or wallet apps are allowed to run on a smartphone.
most apps already work, and it’s been always that way. those that don’t, it’s because they depend on the google services system app (microg helps here). or they require google play integrity to pass which is not something that can be hacked around, because this is its exact purpose: denying to work on open source aosp systems. it is security, but not for you, but against you.