Screenies of W11 were leaked on Baidu, along with sounds...maybe it's so, maybe not.
Things may well change before October, so take it with the appropriate degree of skepticism.
Here a screenie...there are more at Baidu (link in Verge article linked above).
Shows Start Menu in center. It can appear on the left as well. with the task bar in the traditional configuration.
And...you can see what a W11 Clean Install looks like: https://www.thurrott.com/windows/windows-11/251977/windows-11-clean-install
Also from reviewgeek info on sign in, windows key from 7, 8.1 and 10 usable to install which is good news for upgraders here: