Either way, I only get bad performance from a few tabs at a time, usually a Fandom wikia or the pinned Gmail tabs. The first can be solved with a few seconds on about:performance, and the second well... after reading this article and Gorhill's reply, I opened a Fastmail account. We'll see how it goes. But if they're really planning to put all users at risk with an automatic update, Google has finally crossed the evil line.
My firefox session is persistent (tab are restored when I open firefox again). Apparently, I'm around 500 right now, which is a bit above average for me (I usually stay around 300).
Firefox's lazy loading is very good, which means I only have 10 to 100 tabs that are actually loaded. Firefox is still fast in these conditions. Since I use tree-style-tabs, most of the tabs are neatly sorted in trees by topic.
It's kind of like saying "oh no, people are trying to do x with our platform but it's not built for that..." Well, now enough people are doing this, so it's time to change up your UI / performance.
https://joindiaspora.com/posts/14824223
(Yes, I'm an infovore.)
And performance (iMavc v.17 Retina) is usually accetable, at least initially. Somewhere between a few hours to days in, ahard kill becomes necessary.
But; On Android or Linux, both older machines, even with just a tab or two open, within recent weeks, performance has been abysmal. Several other options (console browsers, Dillo, Konqueror, Surf) are at least responsive for very light browsing.
I've wiped Chrome and Chromium from Mac and Linux. That's not possible on Android, and though I'd much prefer avoiding it, I'm typing this on Chrome/Android.
(The question of why I've got so many tabs open, or how to manage/adjudicate them, is ... a longer post. TL;DR: tab management user state management, workflow, and ergonomics all suck. And Chrome is far worse about this than Firefox.)
(In my opinion, Firefox and others could solve this by blurring the lines between bookmarks and tabs with some clever UI.)
I really do use numerous tabs productively, though with better management tools that would likely be more lke a hundred or so tops, not 1300.
The count surprised me, thogh not excessively.
It's presumptive to tell anyone "you're holding it wrong".