When installing Windows 11, say you want to log in with your Microsoft account, then when it asks for email address and password enter [email protected] and any random password. It will say the account has been deactivated and let you create a local account. No need to be offline.
My go-to strategy is to find the richest family in the neighborhood, then power-level my relationship with one of them and get them to divorce their current partner and marry me. So I get a super-nice house for basically free.