I'm probably pretty close to that. I find that I bookmark 20± open tabs into a folder while doing research. Looking to organize them all, though want to pass them to a crawler and set up for indexing and tagging.

HN upvotes have supplanted some of my link hording the last few years, but are essentially bookmarks but another name

I have started doing something completely different than using bookmarks. I set up yacy[1] on a personal, internal server at my home, which I can access from all my devices, since they are always on my wireguard vpn.

Yacy is actually a distributed search engine, but I run in 'Robinson mode' as a private peer, to keep it isolated, as I just want a personal search of only sites I have indexed.

Anytime I come across something of interest, I index it with yacy, using a a depth of 0 (since I only want to index that one page, not the whole site). This way, I can just go to my search site, and search for something, and anything related that I've indexed before pops up. I found this works way better than trying to manage bookmarks with descriptions and tags.

Also, yacy will keep a cache of the content which is great if the site ever goes offline or changes.

If I need to browse, I can go use yacy's admin tools to see all the urls I have indexed.

I have been using this for several months and I am using this way more than I ever used my bookmarks.

[1] https://yacy.net/

Well I know what project I’m working on tomorrow. Thanks for the inspiration!

Answering for myself I currently have 688 active links but I'm not a hoarder.

PS The bookmarker in question, in case you are interested: https://braintool.org

Is there any such for Android mobile?

No sorry. BrainTool is a browser extension and as such doesn't run on Android. One day there might be a dedicated mobile app!

~20,000 bookmarks. Typically have hundreds of tabs open across multiple browser windows.