This relates to the new Personal Menu
Description from chat:
From an accessibility point of view the first problem is that initially, the menu is not a button so you cannot navigate to it by keyboard, after a first click (you need a mouse), the button appears but is not clickable.
Then in the video, I try to move the button out of the main header, then you can see how the item actually is duplicated, so semanticatlly is not the more correct way.
If we need to load the dropdown after click/touch/press the original button and it will be replaced with dropdown we would need to remove the old one
See attached video