Josey Wales said:
Beginning with Windows 10 21H2 any customization either by Stardock or Open Shell my have problems as MS is redoing the entire GUI.
Windows 10 Sun Valley: New Start, Taskbar, Flyouts and features
Yes that will probably mess quite a lot with exisitng 3rd party software.

That strangely reminds me of a concept video I watched recently which looks very similar to the previews



(Not exactly related to the topic of this forum, but definitely interesting)