Most games so far I haven't had to tinker with. I just switched a few months ago and it's been smooth sailing. That said, I can't speak to using any photo editing software.
I'm keeping windows on my computer now for a piece of software for programming my non-custom keyboard and other miscellaneous windows only things like updating Xbox controller firmware. But it has been a blast and being able to make the PC work for me instead of the other way around has been an extremely positive experience.