You can double click on the ground to move to that spot, or on the side of a building to move there and look at that spot. I see that indoors you cannot do this, but hopefully they will add it.
Yeah, that's the "pancake". It works in street-level view because there's 3D spatial data to help bound navigable regions, and because when you're at street-scale you don't mind being a little off. In this comic bookery or in any cramped space I feel like I'd need slightly higher fidelity.