Not really the ideal solution.
There's plenty of places in my city (Leeds, UK) with complex junctions where "stay right", "turn left" could be easily misinterpreted. I generally run Waze with the sound off and use the on screen map.
I've discovered an option to turn off speed cameras in the settings, hopefully that will disable the popups; I'll find out on my way home tonight. Again not ideal as it means I won't see any speed camera information, but better than having the map obscured by the popups constantly.
For reference, this is the number of speed cameras on one of the roads I drive. You can see why the popups rapidly become a problem.