On Android it’s still up to the developers to implement where the back gesture takes you, just like it already is on iOS.
On Android it’s still up to the developers to implement where the back gesture takes you, just like it already is on iOS.
10 would be impossible, it’s still up to developers to implement what the gesture does / where it takes you.
It’s not “baked into the OS”, though. It still has to be implemented by the developer of the app. Apple could enforce stricter approval rules, but there is nothing they can change at the OS level that would make it just work.