They run them as separate teams and don’t necessarily collaborate. Marking Police traps had been on Waze for years and Google Maps just got it last year.
[0] https://news.ycombinator.com/item?id=33903016 [1] https://killedbygoogle.com/
see https://www.cnn.com/2022/12/08/tech/google-waze-maps-merge/i...