I want to like Pinta, but some of the load/save behaviors are just weird... not sure if I last tried the Flatpak version or not, but I've tried it on both Mac and Linux a few times... It's my go to for quick edits, but far from a fav.

There are some subtle quirks where pinta just doesn’t play ball in a way that is intuitive to a PDN aficionado.

Photopea is very close but i keep coming back to PDN either VM or RDP