They were tightly run and limited to 15m minutes. Usually only team leads talked and there wasn't much back and forth.

It's more normal at Google to have fewer people and 30 or 60 minute mtgs.

Even by the scrum ideal of <1 minute per person, that's longer than most traditional "status meetings." Must've been loads of fun.

The couple I sat in for were 10ish minutes (I think the NBC Nightly News segment has a program manager saying "Alright, 12 minutes"). They were done so that each team reported to their team lead what they were working on beforehand, and then at the scrum, the team leads aggregated everything that was going on with their team.

Makes sense. Few scrum teams get that large where you need to start thinking about optimizations like that.