I stopped using every messenger besides signal and Matrix. Even my not tech savy parents are using signal now - its in my opinion the better solution to stand your ground and may push others into using the better apps

Did you tried DivestOS? Its my favorite Rom for the op6

OnePlus 6 and 6T had really broad custom Rom support, it is till now one of the best Phones for linux(pmOS) With some Roms you can even relock the bootloader

My banking App works fine on GrapheneOS. At all i didnt really had any app so far which isnt working on GOS with sandboxed Google Services

I think the increase of so called “ewaste” after windows 10 eol next year will be huge.

Some Fdroid Version may have less trackers or replace Google Services(Signal-FOSS/Molly or Telegram for example use a own push service)

My first step is always to add the Molly and Bitwarden repos.