Okay so I've installed Windows 11 on my old Alienware Aurora R4 (i7 3930k based). Actually really hassle free and easy to do, still seems really snappy and quick and no issues.
Im still not a fan of the UI for it and the lack of the small taskbar icons (I know its possible to do with the regedit hack but im lazy
)
Im still sceptical about installing it on my main PC, but I may after its been a while after release and its been updated a fair bit. But all in all, very good experience I just need to adjust to the new UI.
Also it was interesting installing Windows using a Microsoft account with a Windows key linked as my main PC doesnt use this but I had it on the Alienware previously with Windows 10, nice and convinient not having to get a key.
Screenshot of the "About PC" if anyone is interested: