Some games use a whitelist of GPU’s, it’s always a problem on older games. Most the time editing a text file to tell the game to override the whitelist works, Shogun 2 is a good example (they did not plan for GPU’s with more than 2GB VRAM lol).

They can do what they want, ‘gamer’ GPU’s for AI is not a new thing. The theory of Nvidia’s low VRAM comes from GTX 1080 TI’s being used for AI training, Nvidia saw the money lost and locked down that VRAM.

Sony only sold 40M PS5’s so far https://www.ign.com/articles/sony-says-ps5-sales-can-pick-up-the-pace-to-hit-record-breaking-target

So AMD sold 40M APU’s to Sony at least, then add the number of Xbox’s sold.

Games are made console first, so for the next 6 or so years 90% of games will be made to run on PS5 hardware ie AMD GPU’s.