Question about syncing directory structure

Why aren’t all Joplin’s files stored in the / webdav / Joplin / folder, but instead placed in the root directory.
For example: .sync
This is a tumor for users who seek “clean and tidy”.

I don’t know much about WebDAV sync, but I think all Joplin’s files are supposed to go in a dedicated folder. I know this is the case when I use Dropbox sync.

When setting up the WebDAV sync aren’t you supposed to specify the folder? What do you have set as your sync target?