Abysmal? I have never had any problem in the last 4 years if using it. What is abysmal about it?
Sounds like other user is trying really hard to not admit that Apple Maps is just trash. Still needs a lot of catchup work. I agree that there's nothing wrong with Waze's navigation.
I don't have a particular opinion on Apple maps really, I don't use it often enough. I appreciate the opinion but I'd rather you not put words in my mouth. I do find Waze navigation abysmal but my reasoning is based on years of using it and way too much to discuss on here. I will give a few examples though.
From my work to get home I have 2 major highway routes I can take. 1 is my preferred route, it's shorter but often has traffic and I end up taking a 2nd longer route. For the past 3 or 4 years I've noted Waze' navigation is completely off on the level of traffic and its route suggestions. It will almost always route me to the 2nd longer route if I program it at work, but when I get closer to the point of having to turn to either route then it will route me to the 1st route only if I manually re route. If I didn't manually re route then I'd be stuck on the 2nd longer route with much more traffic and a much longer commute. We are talking about maybe 5-7 minutes/6 miles from work to this juncture point. I've been doing this experiment 5 days a week for the past 3 or 4 years and it hasn't improved. Basically Waze is incorrect about the shortest time and/or best route.
With the pandemic this issue has actually been worse in some ways. Now that there is no traffic I continue experimenting with this. What I notice now is, with no traffic, Waze will always route me to the 2nd longer route even though it's both longer in distance AND longer in time. I do have it in my settings to prefer the shorter time routes so I can't fathom why it's choosing the longer duration route, and even though re routing shows the 1st route is of shorter duration Waze still insists on the 2nd route. In fact that's another peeve, when I want a different route and select it Waze still re routes the original route for some reason and I can only force it to re route with physically driving my car on the different route.
Also it's almost every day where Waze routes me on some torturous, weird route to get to the highway, I wouldn't know this if I didn't take these routes every day. So even though I know making a left and then a right brings me right to the highway, Waze wants me take many more turns in the opposite direction to get onto the highway at a spot farther away than my work. Re routing doesn't show the optimal route, and when I force Waze to re route by taking the right way my commute suddenly drops 3-4 minutes in time.
Another pet peeve, NO LANE ASSISTANCE. Try driving in and around Manhattan, NY, NJ, Long Island, etc with no lane assistance, it's a nightmare. Google maps and even Apple maps has this, I'm not sure why Waze doesn't have it yet. This alone puts Google/Apple maps (and even the crappy built in navigation on my Acura) way above Waze. For navigation to areas I'm not familiar with I will typically use Google/Apple/Acura and let Waze run in the background, thankfully crowdsourced alerts still pop up on Carplay, but it's not the same as having Waze fully open.
Another pet peeve is that Waze has that chime whenever you miss a turn, it completely turns off your audio for a couple of seconds and is annoying as hell and there is no way to turn it off. The issue is that when I'm going to work I know the best route, but Waze keeps routing me to make a left turn to get on a parallel road that is typically backed up and I don't want to take. For my first 10 miles there are literally a dozen left turns, which means my podcast idiotically gets interrupted a dozen times.
I've got a bunch more, with most of these issues not fixed even after years and years of using Waze (and yes I do submit bug reports, feedback, and participate on their forums). Why do I keep using it? Because the crowdsourcing is incredibly invaluable, and the traffic reports are valuable if you know how to work around their goofiness. By goofiness I mean often something like traffic or accident reports aren't relevant or timely. If I leave work at 9:15am and miss the morning 9-5 traffic why is my route being affected by a 40 minute old traffic report that isn't accurate anymore? There is plenty of traffic around it that crowdsourcing should be providing more updated traffic patterns.