I've been using Photoshop for like a decade and have at various times tried using Gimp as well to see if the free competition is better. Pretty much every time I'm struck with how many features it is lacking and how bad the performance is... it was getting less than 10 fps just trying to edit a regular sized image. I'm sure with years of experience I could become good enough at gimp to handle the same tasks as Photoshop but the learning curve is so steep just to learn a program that nobody else I'm collaborating with is using.

In my opinion, the real Photoshop competition is something like Affinity photo/designer-- no subscription fee, great support, and UX that is actually nice.