That's Apple's native way of going back across macOS and iOS no? I'm not an Apple user and even I've come across this when handling a family member's device for a few minutes
Maybe Android's visual ←back button is the way to go after all instead of hoping someone will accidentally discover implicit gestures
It’s only intuitive when you see a page slide from the right to the left. Then you know you can go back to the previous page with a left to right slide. I’ve never seen it used to close a modal
Android can work either way. I turn off the gestures because I prefer the explicit back button.