It’s the Magnesia stadium in Turkey, not sure what it has to do with pyramids in New Zealand

They probably meant reiterate

I’m being pedantic, but if you know you’re a carrier (and don’t know the carrier status of your sister) then it is 1 in 8

It looks like ChromeOS is reported separately in those stats

You can just turn it off. It is the ‘offline updates’ setting in the updater settings.