Yup. I am waiting for that to happen. In the meantime, I have been using a hacky work-around that more or less does the core thing that I want: quickly open up

Yup. I am waiting for that to happen. In the meantime, I have been using a hacky work-around that more or less does the core thing that I want: quickly open up a specific bookmark in a specific container. (Actually adding it into the bookmarks and syncing across devices is a pain, but not as painful as not being able to open up bookmarks into specific containers).