I think all browsers have that now. I use it 3-4 times a year with Safari on both macOS and iOS. That way I feel comfortable closing them all without worrying about “losing” anything.

I’ve been doing this, or something similar, for at least 15 years now. Dozens of mass-bookmark “folders”. I’ve never once looked at the bookmarks I made, not a single time. I even have old bookmark files archived here and there, from machines and browsers for which the bookmarks weren’t auto-backed-up to “cloud” storage like my Safari stuff is. As soon as I can get a local llm running that’s up to the task, I’ll probably have it build some kind of table with categorization out of all of them, then have it edit out entire categories of crap until I have something I might actually scan over to recover a few interesting tidbits. Finally make some use of them, now that tools can take enough of the pain out to make that a less-daunting prospect.