The title is self explanatory and all the necesarry steps are in the following video I made. Still, if you have any doubts feel free to write a comment.
Windows 11 ISO download link: https://www.microsoft.com/software-download/windows11
This was a Macbook Pro 2012 with MacOS Catalina previously installed. The installation was performed through Bootcamp. The performance with Windows 11 improved over Catalina. I have been using it with Windows 11 for over a month now with no major problems, only minor bugs that I assume are general Windows 11 bugs which will probably be corrected with new updates.