Lots of braindead takes in the thread.
4090 is unironically a good card, from a technical standpoint, especially for VR. 
It has 16k cuda cores, if properly utilized you can do things that were literally impossible before at playable framerates. 
The reason we cannot have nice things is because retards keep buying trash and saying "good enough for me". Then devs go "oh, we cannot ignore such a large percentage of playerbase, I guess we will have to castrate the game now =(".
PCVR being cucked by quest-garbage was completely deserved. It really is a karmic retribution.