I don't use waze for the routing and I don't fuss about the traffic reports most times the traffic jams don't exist and probably based on 1 wazer driving down a suburban road at 10kph meaning waze will say blah blah road a dead end street will have standstill traffic on it lol.
But I always turn it on for every drive it's mainly to edit and fix up problems in areas that I'm driving through.
I also assume this will build up some route data and traffic data I do traffic reports as well.
See what happens I guess.
The TomTom maps use an official traffic management data provider that also includes the weather as well.
I would suspect the Apple traffic data is the same as google's traffic data which just shows up speed data.

