I'd argue bookmarks achieve much of the same result, but I see your point.

Cross-platform, as much as I'd like it to work, just doesn't seem to ever feel native. I'd very much like to see a transpilation-based cross-platform development framework that generates real Swift/Kotlin/Javascript for iOS/Android/Web, but I'm not sure if it's possible with all of the nice developer experience goodies that developers would come to expect (namely hot reloading) -- but maybe!