Play different games, Ori, Tunic etc are both bright & colourful and yet somehow manage to be heart-wrenching at the same time.

Yes you don't need PC hardware to play those but non-console gaming environments are also about no lock-in, customisability etc as well.

You're right though - you don't need a fancy GPU to have a fun game, but what you DO need is permission from Nintendo to publish on their platform.