I think banking apps especially the ones in UK, won't work on this device.

90% of banking apps work on GrapheneOS. Curve Pay works for tap-to-pay.

https://privsec.dev/posts/android/banking-applications-compa... has a UK section.

As domh mentioned, some (not all) banking apps do seem to work well at the moment. My concern would be that what works today may not work tomorrow. My HSBC app seems to get more crippled with every update and it wouldn't surprise me at all if a future update rendered it unusable on GrapheneOS (which is the main thing stopping me from moving to it).

It's probably a pipe dream but I do hope that someone like Motorola officially supporting GrapheneOS will make businesses take support somewhat seriously. If nothing else you sound less like a crazy person when you tell your bank's customer support "I bought a Motorola phone and now your app doesn't work" than "I flashed a custom ROM to my Pixel and now your app doesn't work".

NatWest and Monzo work fine on my Pixel 9a running GrapheneOS. Community maintained list of supported banking apps here:

https://privsec.dev/posts/android/banking-applications-compa...

Google Wallet is not supported at all.

Banking apps will be catastrophe in the future. Petition your bank, you want to use PC web app with certificate authentication.

If they don't support it -> notify them and change bank. Enough people doing this, something will change.