I’ve used a pinephone pro with arch and postmarket.

It works, but you really have to love linux to use it as a daily driver.

My banking app (bunq) worked using way droid.

I don’t use mint so this might be blatantly incorrect but after a bit of searching on mint’s release schedule I would assume gimp 3.0 will arrive with the 22.2 or 22.3 version. With 22.2 expected at middle 2025 and 22.3 at start 2026.