I do something similar, and in my case it is apparently a result of ADHD/ASD, but that's not why I'm here. I installed the OneTab browser plugin fairly recently because I tended to keep open "too many" tabs across multiple devices for various reasons. And I'd use it, and all my tabs are "closed and bookmarked and filed away", and then a short while later I've got dozens of tabs open again. In most cases, I've actually read these and I'm expecting to continue using the content in some manner.

So, anyway, counting what's open right now and what I've filed away, I'm at nearly 700 tabs. Some of them will be reused but the vast majority of essentially junk food for the brain.

That doesn't include the untracked but presumably insane number of things I actually did read but didn't keep open in a tab or file for later (just as it ignores the several hundred unread books on my Kindle while not counting the vast number of digital and physical books I do read).

I could handwave and spout unfounded theories about dopamine or "conditions" or anything you like, but ultimately, after decades of this, in my case it's what happens when my focus is on consuming rather than producing (ex: when I'm not engaged in something like a zettelkasten process), while allowing my insatiable curiosity and love of learning to remain undirected.

In short, you've got to manage that stuff. Or, at least, I do,