I think it would be great if there could be icon of some kind to tell you if you’ve already put the bookmarks in a collection to avoid having duplicates in the collections.
There is when you have the ribbon enabled and hover to the right side of the screen.
when you click on the collection icon you see a list of all of them.
Or you want an indicator in the browser menu?
An indicator in the browser menu would be great! Just to know if I already interacted with that page, as a favorite or in a collection or if I highlighted something there.