Mini-folders inside big ones.

[WhiteZHood]

As far as I noticed there is a group bookmarks feature, but it won't be better if was also possible to open group bookmarks as a mini window with single bookmarks, where you click on one and it will refer to the website without opening many bookmarks?

[OlegWock]

Bookmarks group was made to exactly open multiple tabs at once, so it does its job. But your idea of having folders with bookmarks looks interesting 🤔