I think the explanation is quite mundane. An example usage: open google meet, start an empty meeting (an “instant meeting”), click the “…” menu, click “troubleshooting and help”.

There’ll be plots of various stats, including CPU utilization. I think meet will also helpfully suggest closing tabs if your machine is overloaded during a meet call, too.

It’s very helpful, I check it from time to time.

Edit: now that I think about it, I’m not sure about the suggestion to close tabs is actually a thing. I’ve only actually used the stats view.