I cancelled mine this year too after having the subscription for maybe 10 years (and using dodgy copies previously for many many years). I used it mostly because it's the only professional tool remaining that can handle palettised formats and can reduce colours with a bunch of dithering options (I do a lot of retro computing projects and sometimes need/want to manage palettes in there). But it was just infuriating. It was getting slower and slower with every release. Constants updates with AI features I didn't want or need. Etc etc. None of the alternatives do what I want, and I don't want something like Asesprite or GrafX2. I want something like Photoshop. I know the shortcuts and it's professional looking.

I was thinking of building my own clone that suited my needs and attempting to sell it, although I recently found https://github.com/SethRobinson/Patchy which seems to do everything I want. My only complaint is that it's vibe coded, but maybe I should just suck it down and use it. Incidentally Seth Robinson was the author of the BBS door game Legend of the Red Dragon (aka LORD).