Not always an option, unfortunately. By "picked up" I meant if you need to save, close, and eventually someone else picks up the work where you left off. Incredibly common in collaborative settings. I may start a Photoshop file, get to a good point, but then it has to change based on the work someone else is doing. Another person has to open that file and make updates accordingly. If they couldn't find and edit the file because I told them it was done in Photopea or GIMP, that would mess things up.
Affinity is a viable alternative to Adobe, whereas Photopea and GIMP are more suitable for individual needs (although it'd be kinda cool if a practice set itself up to use those from the ground up).
I am also to relocate my gaming and PF2e groups to either Revolt or Matrix. I thought Revolt was also US based and so consensus was it will likely follow in Discord's footsteps a few years down the line. I guess then you just migrate again which isn't the end of the world.