Just this week I installed W11 on a laptop (temporarily, I just wanted to see how it ran on this hardware), and despite being connected to the it asked me, by default, for a username for the local account. I don’t know why, but it didn’t ask for a MS account first.
Genuine W11 iso, downloaded directly from MS website a few weeks ago, no modification. It was a Pro version if I remember correctly. I tested it on a 2015 Surface Pro. I was already connected to the network and did not click “Domain join” (I would have if it had asked for a MS account).