Ive been using classic(then open) shell since moving off of 7 for consistency. for the most part, there haven’t been any serious bugs that im aware of. Because the app works between windows versions, start bar for me at least has been pretty much consistent since windows 7 existed, and the stuff id adjust to would be changes in some apps (e.g control panel > settings) that happened overtime.

The problem of some users is they want the vanilla experience to be what they want when there are options to not make something vanilla. Similar to debates on linux distros on whether you want a very specific UI design vs having a distro that is personalizable and customizable based on preference.