While it's certainly nice that those options exist, they are also entirely unsuitable for any kind of professional work. I assume the target user you're thinking of is looking to do some occasional, light-weight editing. And even this user will be frustrated with the irritating UI and workflow of software like (and in particular) The Gimp.
For me, it's close to unusable — and I am someone whose first computer was a TI44/4A. I'm a die-hard terminal shell user. Even Adobe Illustrator didn't really click for me. The Affinity suite made immediate sense.
There's value in usability.
