The issue I reported here is still present in 1.01 (Windows 10 and 11). As soon as you open the settings of modern style, the menu reverts to the version with user icon.
Another issue. Go the settings, in my case modern style, then go to customize menu visual appearance. Then go back a page, that option is greyed out entirely and cannot be entered again, until you close the Start 11 settings. It does not matter if you make any changes before going up a level of the settings.
Another issue, same style. When going to Recent Items, set as one of the quick access shortcuts, there is a very small menu at the top left of the screen that pops up right before the menu of the recent items itself is displayed. It flashes by quickly, so hard to take a screenshot.