Solved my biggest problem with gestures but I don't understand it
Tl;dr: This solved my problem with swipe up and hold for recents but I don't know why and I'm curious. And grateful.
When I upgraded from a Oneplus 6 to Oneplus 7T I didn't realize that I would lose the OP gestures that were burned into my muscle memory. My biggest problem with the stock gestures on stock OOS was that the fric*kin* sweep up for recents *did not work* more than 50% of the time. I thought it might be Nova or my hiding the bottom bar but swipe up and hold didn't work any better with OOS stock launcher or Lawnchair.
I'm pretty used to Magisk installs with a number options that are activated by the volume key but I didn't understand the options I was choosing and some of them were covered by the "Flashing" animation in the center of the screen. I just chose "no" suspecting it was the default.
Anyway, I'm thrilled. Apart from the swipe in for back rather than swipe up of the OP gestures I now have a reliable home and recents gesture. This is on the latest OOS stable International with the latest Nova beta. I have had no issues that seem specific to OP or to Nova, fingers crossed.
So thanks again. And any explanation of what this does and how it solved my problem is welcome.