Even a 4090 would struggle getting 30 fps on 8k... Most titles are using resolution scaling on the current system, so I really doubt this generation aimed at 8k. In fact, it's the 1st go at 4k... Would you pay 3000$ for a pro version just to play on 8k?

If you think 100GB for a game is big, wait until we get textures for 8k tv... it will be 400GB per game :)