I'm glad I held onto my Garmin DS61.
Once you plot a route it has a sidebar that shows yellow and red traffic warnings for your entire route. The latest Garmin's, like Google Maps, gives you alerts but doesn't show you, on the screen, anything more than what's visible.
I'm a tech geek having spent decades working with PC's from analyst programmer (COBOL, Visual Basic, VB.Net) to systems support.
I don't like or use voice on my phone or tablet, or car, but I do use a Google Nest Mini, in a separate room so it's not able to constantly listen in, you never know.