I used to use Gimp for photoshop type operations but it's become unusable for me due to slowness, even with a M1 native build. No idea what's up. Tried Krita and it works great
Krita is a complete replacement at this point. And, its features caters to drawing/painting to a greater degree than photoshop, by far. The brush engine is phenomenonal and just for this has become my favorite drawing tool.
Two tools into one. Snappy fast even on OSX, and feels very much native visually.
Tip: Veikk manufactures great 8192 pressure sensitivity A4 size tablets for about 40 to 60 bucks. Packed with extra nibs and everything . Krita and this obscure made of tablets plugged onto a commodity laptop is the best value artist station for all sort of digital work.