Would you like to show your collection?
I consider them very private. I use Pinboard, but for sensitive stuff, I store that locally using my browser's bookmark manager, then at the end of the year, export it and convert to a boring plaintext list of URLs which I use going forward. I am not sharing this list, ever.
The solution I was looking for: - browser independent - works on desktop AND mobile - has tags (more specifically EXCLUSIVE tagging) - low friction / integrates with my workflow (easy to add and find bookmarks)
It's a personal bookmark manager. So everything is private. You cannot share collections.