Not a graphic designer, so I can't speak for their reasons, only for mine. First, I had a photoshop subscription and when I cancelled they wanted to fine me for cancelling. Then they bought the Substance suite and made it subscription only and very expensive (unless you buy the Steam version, whose price they doubled). That also hurt me, when I could barely afford those tools

I'm better off now, but I have a long memory and prefer to vote with my wallet by paying multiples to any competitor...which generally speaking is better for me and everybody else, since competition is the mother of innovation.

Apropo, Marmoset Toolbag 5 is out; it comes with a permanent license, it has a huge materials library, and the interface is very snappy and it doesn't feel like it has been programmed using Electron. You don't need to pay for Substance Painter this year.

Ah, and Adobe's latest exploit was a confusing TOS that more or less stated they would use your work that you edited locally with their software to train their AI models. I think they walked that one back when the wave of outrage hit them.