There's really one main way to get to work for me. If I check Google Maps before leaving - but I rarely travel during rush hour, so I rarely do - I know how to get home on the longer alternate route. (Even so, usually it's not worth taking another route!) Maps when I'm not on a road trip is 98% useless and not what I want to see - just a distraction. My other half (Model X) and, really, most people I know in this area, don't use their nav 24/7 (whether Tesla or non-Tesla), from what I've seen. If I wanted an always-on map, I'd've kept using our old Garmin. ;-) My other half uses camera+music usually, IIRC; I use music+energy.
I find traffic info useless for errands. When I get close enough to see "oh there's a bunch of red there," it's frequently too late anyway, or else I can get around it without a map. (Also, I tend not to run errands during rush hour.) (Yes, yes, there can be traffic other times of the day; still - not helpful to me.)
But ultimately, they took a useful, flexible interface and #1 made it more work to get to the apps (more driver distraction!); #2 made it very rigid; and #3 forced a distracting (to me) map-always-on that no one was asking for (duh!) (no one asked because they could already have maps always on!). If they used this Model 3-optimized layout to streamling software dev, that's really foolish from what should be a customer-centric company; one size doesn't fit all here. (If I ever look into a 3, I imagine I would find the UI annoying as heck and would not buy one.)
Speaking of which, re. the parody of 2 Tesla VPs talking - many people upgraded in ignorance; that doesn't mean they're happy with the changes. Tesla's new UI reminds me of things I see too often at work - prioritizing "hey this makes a cool demo" over "customers won't use it/won't like it/really love the feature you're removing." Removing features is almost never a good idea.
Also, having it forget and default to music (as I read in another thread) is another bone-headed change; not everyone keeps the music up all the time like I do. What's that? Yes! To the "wut, why use camera" people, please try on empathy. I don't go around thinking "OMG why doesn't everyone use music+energy like I do?!" ... sigh. Some people really miss the point. Your way or my way isn't the only way; but Tesla's made it so there's only their way. The car worked how you, I, him, her, everyone worked - we all work differently. The "upgrade" makes it so it doesn't work how everyone works - it just works on someone designer at Tesla thinks people work.