Thank you for postmarketos. I had a look and it actually looks exactly like what I had in mind. They even have a community on lemmy at lemmv.ml/c/postmarketosI now have to check out the shiftphones and see if Linux supports apps like the banking apps, 2FA, etc. or if they can be emulated through some kind of Android laver. Otherwise it would have to be an Android OS without Google or a separate phone for those apps.