Good to know! Indeed some hiccups are expected. I don't need 2FA mule most of the time, but when I do, mine is an old phone flashed with LineageOS, no Google services at all, only F-Droid and otherwise manually installed apps.

Working well, albeit the Google login tends to give more problems than it should, in smaller and independent apps like these.

But I definitely observed that the one time that I left the phone plugged in for the most part of 3 months, the battery never was the same. It lost like a third of its capacity.