Can we get apple to enforce consistent 'back' behavior in iOS next?

I just switched after being an Android user since the dawn of the smartphone era. There are some improvements over Android so I'll give them credit but holy hell is navigation just a complete mess. Every app seems to behave differently, and even within the same app you'll see inconsistencies.

Would it really be that hard to provide a universal back gesture that works across apps like Android has? It makes the phone so clunkly and slow.