After using LineageOS for long time, I have finally moved to GrapheneOS. I use a lot of banking and financial apps which I never felt comfortable using on LineageOS due to lack of proper sandboxing, unlocked bootloader etc.
GrapheneOS works flawlessly just like Android. You don’t even notice there’s hardening underneath. Also it protects from Google’s evil location tracking using WiFi/Bluetooth or even when the Location is turned off. I don’t understand how people in general are comfortable with Google tracking all the time. You can use Google Play and Play Services in a sandbox that works just like regular installation, but without deep tracking.
If you haven’t tried GrapheneOS, try it. You won’t go back to regular Android.
Well, there is no support from privacy roms, but I can survive with lineageos+microg (with somewhat decent updates) on redmi 4x. There is support for poco f5 and redmi 12 from crdroid, which supports microg and is apparently decent. Cheaper options usually have mediatek processors (mediatek doesn’t opensource their software or release fw blobs), so the support on those phones is terrible. Support on snapdragon xiaomis is still way better, then on samsung, oppo, etc.