I'm pretty sure you don't even have to unplug network to install Win10 without Microsoft account - just during the installation you don't create one (or login to existing one)
This used to be the case, but the last time I installed Windows 10 the already hard to find “create local account” option was completely gone until I disconnected.
Exactly. Since a few years now, and as many Windows 10 versions, the disconnection trick is not needed anymore. They still unemphasize the offline profile option (with the usual dark pattern of making a button not look like a button, and to word it as something negative you sure wouldn't want), and nag you twice if you find it, but it's there, hidden in plain sight: you just need to pay attention.
The comment mentioned the disconnection trick, which I thought only ever applied to certain versions of Windows 10. I'm now learning that (non-Pro?) Windows 11 is also (currently?) affected too.
Not that it should surprise me anymore. Microsoft's shamelessness knows no bounds.
