I did not use Photoshop particularly long, but I have been using the Affinity Suite both on a pc and a tablet for over a year now and can say it’s definitely quite good. Everything is where you think it should be, the workflow feels very usable with no major learning curve (looking at you, GIMP), and overall the only thing I don’t like about it is its lack of Linux support. I would assume that absolute professionals won’t be able to find everything they like/want, but if you’re reading this, chances are you’re gonna be more than satisfied, if FOSS options don’t quite work for you.