Windows 11 seems to have front end goodies which make it look more modern, but also under the hood improvements for gaming if Im not mistaken, Id wait a bit so its available in the official channel and not via Preview (although you could its already pretty stable)
I downloaded Windows 11 a couple months ago when it first became available to try (while in development). I was very wary considering all the negative attention it got for system requirements (I doubted my PC could run it). Since then, I have found it to be a great improvement over Windows 10 -- which had begun to lose its appeal to me. Admittedly it has been more or less a visual improvement for me, but the lack of issues has made it worth it in my situation. The MacOS-like UI changes were greatly appreciated!