I really wish the idea that apps need to open websites in-app would go away. Like it looks neat when you're demoing it for your coworkers but it just increases the number of taps since to do anything useful I need to open in in Chrome/Safari anyway.
If the in-app browser was just a window into actual Chrome/Safai (i.e. it's a real tab when you open Chrome/Safari and has your logins bookmarks, etc.) and you could "pull" the window into the foreground as a slick transition to the browser app then it would be fine, but as it's implemented it's mostly just annoying for everything but oauth flows.