It depends on your role, PMs and managers would obviously have a lot more. I'm just a lowly engineer and looking at my calendar this week, I've have 2.5 hours of regular meetings, 3 hours of interviews (though that's an outlier, I normally do 1 interview a week, which is 1 hour long), and 2 hours of "tech talks" (which is not really a meeting, it's basically people from other teams talking about what they've been working on).

Including weekly one hour of tech talk I have 2-3 hours of meeting every week and I love it that way. 10 hours a week would be terrible. (Not a Googler btw).

Agreed. 10 hours a week of meetings seems nuts.

I've been trying to get my boss to reduce the 2-3 hours a week of meetings I have to attend.