Just look at how most people do a search, for instance. These days for me it often involves 20-30 tabs, or even more, due to the horrific state of internet search. Many results have to be explored, many links from those results also explored, more searches done to narrow in on the precise keyword needed to bring up some hopefully good results, etc. And I can't close all that until the answer is found, as I may need to backtrack, so they just pile up. It's really quite ridiculous how much work it takes to find a good answer these days.
Compare with the typical person who just does one search with some suboptimal keywords then clicks on the first link, or starts dutifully absorbing the AI-generated garbage. Orders of magnitude difference.
I have dozens of projects I'm actively working on just for my Linux distro. Dozens of tabs open for things like X11 window management, for instance, or some info on C++ modules for another project. Lots of tabs open for a hardware project. All kinds of balls are up in the air here. Why put any of this stuff in bookmarks which is a waste of time and energy to manage, when I can just leave it in the tab list, organized in multiple windows spread across different desktops? (I have 64 desktops on my 55" plasma display.)
(lol @ the other guy's reply. That didn't age well.)