Wrong section of the forum. Should be in bug reports.

And I can almost guarantee it's not FFXIV and is entirely how GPU and CPU unfriendly Windows 11 is. It's an awful OS. Have you tried forcing off all the AI tools like Copilot?

If all else fails, I had zero issues running FFXIV on SteamOS via my Steamdeck and that's a free Linux operating system. I'm looking into swapping myself.