I noticed that the new interface doesn’t let you diagonally navigate (red arrow with an x) to a submenu item anymore since the focus area only includes an invisible straight branch to the left (green arrow).
Hopefully they fix this since makes it really difficult to access submenus.
They’re bad at popovers, this one closes too fast and the menus on the Bambu store are way too big and after you close them they re-open if you hover on the popover area too fast. Unfortunately I think both are third-party libraries, so there might be some way to fix it but they probably won’t.