Specifically, why do I have Photos and Videos when I have never ever declared one?
In previous versions, only those Folders and Media Types I’ve declared were displayed.
It’s not the end of the world, but I find it strange to have those, only to see them populated by other libraries.
On Photos, I’m presented by the latest records I’ve ripped, for example.
Unless you want a unified UI on all platforms, no matter how people organized or named their libraries and folders…