In this video, we compare the full gesture navigation in Android Q Beta 5 to Pie’s 2-button setup, which is more of a gesture-button combo. I talk about why the back gestures from the sides are a disaster and work against so much of Android, not just slideout menus. I also point out some of the pointless changes that make for more work in these new gestures, where a couple of minor tweaks to the 2-button setup would have given us full gestures that make a lot more sense.
Again, this video is probably too long, but I cover it all.
Google, you can do better than this.