This does not work for me on iOS. Tested on iPad and iPhone.
Where are you initiating the swipe from? With Apollo, when the left gesture was disabled, you could initiate a left swipe from anywhere on the screen to go back. With Voyager, I have to initiate the swipe from the left side of the screen to go back. On a large device such as an iPad, this is not ideal.
Last I checked, if you wanted to download media to a mobile device to watch later, you could only do that at full quality. Has that changed?