I do not (usually) think of myself a hoarder, but any kind of reading online seems to result in a browser full of tabs (as xkcd humorously illustrates).
Even though desktop has more room to handle tabs, I find that even light research or troubleshooting can result in dozens of tabs, and after a point, only the favicon remains. When switching to a new task, I usually find it easier to close everything and start from scratch though I tend to bookmark to raindrop anything I might want later.
On mobile, it is more challenging, since the browser is more space constrained and it is harder to find things. Similar to desktop, anything I may want to reference, I save to raindrop to autosort, and have started to force close all tabs.
Instead of leaving tabs open to ‘read later’ changing my behavior to bookmark for later and close everything feels better for my workflow. At some point I should go through and prune my bookmarks (in Raindrop, in Mastodon, and elsewhere) but at least I do not have out of control tabs.