Check it out here: win11.blueedge.me
This is kinda fun. Someone has created a Windows 11 simulator using Javascript. It's fun to play with for a bit, and a pretty impressive display of JS skillz.
If you're looking to download and install Windows 11 onto one of your machines, here are some links.
The official Win11 download site - Microsoft Official
Techspot's installer tool - make your life a little easier