I looked at that thread and this doesn't sound like the same thing to me but I guess we'll have to wait and see what the OP says... To me it sounds like they are touching the screen and then swiping up. Especially once they mentioned that Assistant was occasionally popping up until they disabled it. So instead of a smooth finger down, up swipe, it sounds like they are placing their finger, delaying and then up swipe. Since we don't know the OP or much about them, it's hard to say what their reflexes, mobility or flexibility are like. I think they could probably solve this by changing their touch and hold delay setting. By default it's .5 seconds or 500 ms, if they increased it to 1 second or 1000 ms they probably wouldn't have this issue any more. Settings>Accessibility>Interaction and dexterity>Touch and hold delay.