

Most “normal” programs use some “abstraction” libraries, so the programmer doesn’t need to know which platform it is running on. This “platform” is important because it is the layer that actually talks to things like your SSD, RAM, GPU, etc.
Videogames, tho, are very very specific programs that really benefit from very optimized code, so some of these “abstraction” libraries simply will be worked on for a specific operative system.
Thankfully, the people from the WINE project and lots of work from Valve themselves have made it possible to “trick” these libraries into thinking they are talking to Windows. It’s not perfect, tho, so some stuff is still not working, but you’d be surprised how much we’ve got already. Check out the ProtonDB project.
I’m not so sure it was an organized attack or rather a 12 year old kid who found out a stupid way of accomplishing a stupid thing.
I don’t know if there were other things done, but those 2 words I’ve read are more like 2 words a non-native kid would use rather than a far right manifesto, AFAIK, 😅