I'm a long-time Linux user, and I've started using Windows 11 for work and… It's basically fine? There are no adverts in it that I can see. Multi-monitor support works. Lots of the deeper settings still retain their Win98 look & feel. Window snapping isn't quite as advanced as Wayland, but quite acceptable. About the worst thing I can say is that it moans my 40W USB-C charger isn't powerful enough. But it charges well enough. Doesn't seem remarkably different from XP TBH.