With a partially broken screen and weak battery it may be time for a new phone anyway. I will look into pixel and GrapheneOS. Thank you for the suggestion.

Tried that, but the banking apps still claims that the security check failed.

Tkank you. I already had magisk. I tried installing the safetynet-fix, bit unfortunately it did not resolve the issue on my Xiaomi Mi A2 phone.

Is there an Android phone that supports dual boot? I would like to have that so can use Lineage or something similar and only boot into Google android when I need to use banking app or government ID that requires the safetynet antifeture. This would free me from carrying two phones. But I suppose a locked down bootloader can not support dual boot and an unlocked will not support the safetynet antifeature.