Gimp is no where near to be an alternative to photoshop. I understand its an open source and free software, but I would rather prefer someone taking money and polishing the software for human usage.
Affinity suite is much more recommendable.
It offers a lifetime license and is actually a polished and alternate software with most of the feature parity.
I spent so much time installing and compiling Linux that I ended up with a programming career.
I also now use macs.
https://xkcd.com/963/