I'm not sure tab count is really a viable metric here. You'd think there'd be a strong correlation, but... On one Windows PC, I keep 2-3 tabs constantly open

I'm not sure tab count is really a viable metric here. You'd think there'd be a strong correlation, but... On one Windows PC, I keep 2-3 tabs constantly open (may as well pin them tbh), and open/close others as needed. Average tab footprint is probably 3-8 tabs. Average RAM footprint is 1700MB. I have different tab footprints on different machines, of all sorts of different hardware and OS combinations; let's say the general tab footprint is 5-30 tabs, and general memory footprint is 800MB-3GB. On the other hand, one user here reported a few thousand tabs at ~500MB RSS. Obviously factors like assets and JavaScript affect RAM consumption, but a lot of these heavy tab users have to be running a good number of web apps. There must be something else at play.