Vista was an entirely different situation. At launch, it was notably less stable with existing games and performance could really lag behind XP. It was a big change from XP.
I recall most of the games I ran ran just fine, even without performance problems. I recall doing a test with Counter Strike Source and the Vista side performed slightly better than the XP side (the OSes were on the same laptop). And if there was a problem, it was likely because the game wanted admin rights for some reason.
MS allowed the codebase to bloat and OEMs were shipping PCs with too little memory to handle to new OS. But even if you had enough memory, there were some significant framerate dips in the early days of the new OS for games.
Only Windows Vista vastly improved the underlying architecture of the OS. The only reason why few computers at the time of launch could run it is because Windows XP could run on a potato at the time. A higher end Pentium 3 with 128MB of memory, a configuration that wouldn't be out of place in 2000, could suffice if all you needed to do was basic tasks. The mainstream PCs at the time (here's
Dell's website back in 2006) arguably barely added more RAM from that (256 MB in the base configuration, which was also
the base configuration for the "midrange" Dell Dimension back then). I had a computer built back then with 2GB of RAM, and while I can't track down the receipt for that, I don't think RAM was
that expensive at the time. At least, not approaching the $550 7800 GTX I put in it. In any case, between that an a laptop with 2GB of RAM, I had no issues running Vista.
If anything, it was a rude wake up call that system builders were shipping out garbage PCs. One that people seemed to miss.
11 has some mostly cosmetic upgrades and that scheduler modification, but other than that, its pretty much just a better looking Win10.
And quite a bit more:
https://en.wikipedia.org/wiki/Features_new_to_Windows_11
I would argue that Windows releases since Vista are basically "Vista, with user facing changes." This isn't unlike the development history of macOS