Map Chats often contain useful information on lane closures or other hazards, but while their icons show up on the car's nav screen when using CarPlay or Android Auto, they can't be tapped on or read.

It is far more hazardous for me to unplug my phone, open the Waze app, and read the Map Chat than it would be to simply glance at my dash nav and tap the chat - you could even have the phone's TTS read it out while displaying it, then give the option to give it a thumbs-up.