“Chrome now shows each active tab’s memory usage!”
https://medium.com/@addyosmani/chrome-now-shows-each-active-tabs-memory-usage-4f74876538e6

While very cool, only seems to be on hover (no computer; cannot confirm).

Also, why the Head of Google Chrome Developer Experience posts this on sign-up-walled Medium with demonstrable accessibility issues is insight into which developers it continues to prioritize.