WebGL: Google Maps is arguably the #1 application. It's used to draw the line drawing based maps and to re-draw them with different things emphasized depending on your needs (as well as rotate, scale, zoom, smoothly) But also, of course the fact that it goes 3D. It feels like they've de-emphasized this feature because I suspect few people use or or even know it exists but demo https://www.youtube.com/watch?v=mbxYG5Sb…
3D Buildings in Google Map like that was announced a few days ago at Google IO, it's called immersive view. https://blog.google/products/maps/three-maps-updates-io-2022... I don't think we can actually use it yet though. Edit: that video might be of a different 3D feature I have no idea of
https://www.youtube.com/watch?v=YHe3ag3i8v8
AFAICT the announcement is saying they made it even more detailed than it already was