@hadronized @antaeus @Gina data point that can be handy for you: living in NL with a Fairphone 5 with e/OS. DigiD works, banking with 2 banking apps work, I read that they also got Revolut working semi recently but that needs validation.
Main issue is with the maps for me, Magic Earth, the default maps app, is a bit of a hit or miss, might take a few tries to get started, especially on low battery.