Yes I’ve worked at FAANG companies, and yes it’s great Instagram used AsyncDisplayKit (which is archived by the way).

For most companies (maybe all), it’s not needed. Apple is doing a fantastic job abstracting views into SwiftUI and Android team is doing the same with Jetpack Compose.

Then what? More abstractions over abstractions to achieve 60 or 120 FPS through another framework?

And this is not related to the OP post, making these bottom sheets is a breeze. Literally:

1.) Custom ViewController with custom UIView as base view 2.) Add as child or present over root controller 3.) Translate and animate custom base view from bottom (top... left... whatever the hell you like)