Using either of these with CarPlay now the phone must remain open and unlocked and the maps must be active. Of the maps app for either of these apps gets closed, on Google Maps the map freezes and will not do anything. I also am unable to keep my phone open and unlocked using Google maps.
on Waze the maps screen just turns off if the phone is locked or the Waze app isn’t open and active. Additionally when starting Waze on the split screen where it shows music, maps, and the next turn on CarPlay, the next turn screen appears as if the Waze app is just open but not headed in a specific direction So it just says search. You have to open to the full screen Waze app on the car play screen then back to the split screen for it to work.
Google maps is effectively broken while Waze can be used with a work around. Though Waze also randomly stops the directions and goes back to just showing the maps and you have to get directions again to restart it telling you the turn by turn. Screen on phone and CarPlay just goes into the mode as if you just started Waze with no destination.