After a less-than-stellar debut, Apple has continued to improve upon its Maps app with each new iOS iteration, including iOS 13. In addition to adding the Look Around feature (equivalent to Google's Street View) and letting you automatically share your ETA, iOS 13 also tweaks the Favorites feature and adds a Collections feature which lets you create a list of locations that you can share.
Your estimated time of arrival (ETA) is useful information whether you are meeting up with friends or trying to coordinate with your spouse or co-workers. Every navigation app gives you your ETA, which you can relay to whomever with a simple text, but many now let you send it directly from the app, including Apple Maps. Apple already addressed sending ETA with the Home ETA shortcut in iOS 12.
One of several new features in iOS 12.2 is the addition of the Air Quality Index to the Maps app. The AQI is a measurement of air quality that takes into account ground level ozone, particulates (which includes things like ash and pollen), carbon monoxide, sulfur dioxide and nitrogen dioxide.
Punching in your home address (or work or any common destination) in your favorite navigation app grows tiresome after a while, even if it is already there in your recent places. Thankfully both Waze and Google Maps offer shortcuts to directions to your favorite places through a simple 3D Touch and a tap. All you have to do is assign your home, work, etc. locations, then they will be available for quick navigation. Apple Maps, as you would expect, is supposed to have this functionality as well, but as of this writing it is not working properly in iOS 11.3
iOS 8 introduced 3D Flyover tours of various cities around the world, but they were guided in a sense - they flew you around the city as you sat back and watched. In iOS 11 you can control your flyover (though the guided flyovers are still available). To do so, search for a city, then tap the Flyover button. You can start the guided flyover with the "Start City Tour" button or control your own motion simply by tapping elsewhere on the screen.