Depends on the cat(s) really.
My old kitty (RIP) was a third one in a house with two nominally feral adoptees and they did not welcome her.
When I moved and she was the sole cat she displayed stress and shredded two sofas and more.
Now we have two unrelated cats adopted together that don’t totally adore one another but are civil and they have NEVER scratched a single non-kitty item.
While they tend to keep to themselves I DO think they stimulate each other with occasional (thankfully gentle) paw bats and chases or just do solitary cat things. Like roommates.
So…depends - if you’re not home a lot kitty will need stimulation. Good luck!
I’ve had Pixelmator for years and it’s more than enough for my quite unprofessional editing needs. Someone with better artistic skills would be able to do pretty much all the same stuff they would do in PS from what I gather.