Really only Photoshop is the big gaping hole I feel as a linux user. Gimp is just atrocious.
There is a desktop webview of PhotoPea, but it's not the same.
2.5 hours of battery is a serious gaping hole imo.
Depending on what you are doing, if you don't fancy Gimp, then maybe one of: Krita, Darktable, Inkscape?
Have you tried running Affinity products via Wine? I've heard good things. I personally ditched Adobe years ago for Affinity on Windows & Mac. Only people I know still using Adobe for photo or vector work at a company that doesn't blink at paying for it.
Have you tried Photoshop's online version that runs in a Web browser?
(it uses wasm)
I'm in my 60's and have never run Photoshop. Nor my wife, my kids, none of my relatives I'm aware of for that matter. Come to think of it, of all the people I know, no one runs PhotoShop that I'm aware of.
gimp is actually pretty good, but things are in different places than photoshop and that's a huge change.
I thought the same about Gimp, until I sat down and tried to learn it's workflows. Once you adjust, it's pretty great. imo, ymmv, obviously.