Did it the day before yesterday with a fresh win11 image from Microsoft (no rufus magic or anything). You can press shift + f10 and run a command I don't remember. It restarts the install process and lets you create a local account while it still patches the system before the first start (no fiddling with internet connections required). At least that still works.

At least for an install in vbox under Mint :)

It was in insider builds yes but it still seems to be 'live' in production builds.

The writing is on the wall though.