There's no way to see a street name on Apple Maps without zooming in entirely. And sometimes even then, I'll see something like Route 99 instead the name by which everyone refers to the road: "Broadway".
Dear Google:
If I have my directions preference set to walking, cycling, or public transit, there is no reason to EVER show me the route number of a street that has a name. I don't care about it, and it actively gets in the way of using the map since it displaces the name, you know, the thing that is actually on the signs that I am looking at with my eyes.
It would be one thing if it showed both the name and the number, but usually you have to pinch and pan so far from where you are before you luck into seeing the name that you've totally lost your orientation on the map.
It frustrates me to no end how hard it can be to see the names of streets in Maps, it's one of the most important things!
In my area (Connecticut), it depends. Some streets are known by their route numbers, vs some streets have route numbers and most people aren't aware of them at all. It's more common to refer by route number if it's a busy main road that changes name from town to town that it passes through.
Then there's upstate New York, with plenty of streets that are only route numbers, despite being otherwise residential normal roads.
Not for streets that go through a town or city and have maximum speeds of 30 mph (48 Kmh). And those are the streets that Maps displays route numbers. I don’t know of truckers using those streets.