A lot of the hate GIMP gets is people coming from Photoshop expecting it to work like Photoshop. In fact that’s true for a lot of Adobe-like open source projects. That’s why “industry standards” are dangerous and really only exist to keep one company rich.
Nvidia creates problem then creates solution and charges a premium for it. Industry smells money and starts including said problem in games. AMD gets left behind and tries to play catch up. Offers open source implementations of certain technologies to try and also create solution. Gamers still buy Nvidia.