Who said things need to be tidy? 😅
I mean the background activity and memory usage is a valid concern. I believe there's some limit to the number of background tabs which get loaded and are allowed to do things, and I've lowered that number. But other than that I'm fine without putting in any effort towards organizing my tabs. I'll just open 600 of them and use Ctrl-Shift-A on Chromium or '%' in the location bar of Firefox to search for the tab I need, and it takes me there instantly. I mean I get why people use the title text in the tab panel at the top and the mouse to navigate. But it's not really necessary to do it that way.