That is pretty much the chicken and egg problem of Linux in regards to Apps and Games.
The answer was "nothing". I asked why; the answers was: "no Photoshop user will migrate for Linux because of it, no gimp user will migrate to Photoshop".
Also, I've read in HN once: that are more people using Linux on the desktop than there are Photoshop users. People overestimate photoshop as a killer app.
It’s hard to feel sympathetic towards Adobe with their expensive subscription model.
I guess Adobe only wants professionals and very serious amateurs to use their products these days.
To be fair, OS-native (and free 3rd party) apps are very good for the average amateur photographer, unlike 15 years ago. I think the market size of that segment has shrunk as a result.
I'm not overly a fan of subscription software, but $9.99/mo for Photoshop and Lightroom is 1 1/2 coffees a month. If you're enough of a photographer that you lay out probably $700+ on a camera rather than your iPhone, then...