For instance, i go to frontpage of HN and open in new tabs the stories and comments that interest me. Its not uncommon for 15 stories with 15 comments sections (thats 30 tabs already),
Then I sometimes, open links from comments, or Wikipedia etc.
Today i have more than 50 tabs open just starting from HN.
Some stories when i read I close, but sometimes when I think i need to reread or save for later.
After the week i usually have around 150+ tabs that i have left for later, I do the triage and I either save to my notes (like interesting, os dev articles, or rust or postgre optimization tips ...) or close.
And thats just for HN.