I've 'upgraded' (in my opinion it's actually a downgrade!) 5 not compatible PCs easily. If you do a google search for 'install windows 11 with rufus' you'll find all the info you need to install the spyware known as Windows 11. Once Win11 is installed get to the settings and turn of all the things that you don't need, all the tracking that they have added and make sure it's set to save to the hard drive and not the cloud which is the default. All the PCs I've installed 11 onto receive and install the updates without problem.
Personally I would stick to 10 or, even better, Win 7.