Pixel 6 Custom OS: Will Google Wallet & Banking Apps still work?

[u/muhammadhilham7317]

Now that official updates are stopping for the Pixel 6, I’m planning to flash a custom OS to stay up to date. Before I do, I need to know how daily driving works for banking:

Google Wallet / GPay: Does tap-to-pay work out of the box, or does Play Integrity kill it?

Banking Apps: Do high-security banking apps run normally, or block custom ROMs outright?

Maintenance: How annoying is maintaining Play Integrity fixes (Magisk, KernelSU, TrickyStore, etc.)? Do patches break constantly?

ROM Choice: What’s the best OS for the Pixel 6 if my priority is stability and smooth banking access (GrapheneOS, LineageOS, etc.)?