Turns out you don't actually need an internal drive to run Windows properly.
Need more space for your growing library of games on your new PlayStation 4 Pro? Maybe you had a hard drive failure in your launch PS4 and don't have the heart to get rid of it. Don't stress!
As OMG Ubuntu points out, the new minimum is in place beginning with version 26.04, scheduled for release on April 23rd. You’ll still be able to install Ubuntu on systems with less RAM, if you can ...