The problem is that Adobe still makes the best tools in a lot of categories.
They also have the whole ecosystem lock-in model that also worked for Apple: their products work together, so if you try to replace Photoshop, you're probably still using Illustrator, and After Effects, etc. except your workflow isn't as smooth anymore, because there's one tool in the chain that works differently than the rest.
They also have the whole ecosystem lock-in model that also worked for Apple: their products work together, so if you try to replace Photoshop, you're probably still using Illustrator, and After Effects, etc. except your workflow isn't as smooth anymore, because there's one tool in the chain that works differently than the rest.