Cant modify folders when placed on Dock.
Unable to move an app icon within Dock folders, as it will then go to Home desktop.
Cannot add an app to a folder if the folder is on Dock.
use to work in iOS 11-12 and up until this last beta.
Now, I have to move folder off the Dock, make changes, then move folder back to the Dock.
happens on iPad OS as well whether choose more or less icons grid layout, both light and dark mode.
I have apps in four folders on the Dock and a clear desktop.
(I would prefer apps not be forced to upper left corner of the screen and allowed to be free form and start at bottom, or along the sides.)
Goes beyond issue you have with multiple windows and tasks side by side.
this is what my dock looks like so my desktop is sans app icons or folders. There was an issue at one point where it had to have at least one icon (app or folder) or the home screen would crash.