? App pairs still present for me on fold 2 in oneui 3.1. Add whatever apps I want to a multi tasking set. Tap the bar on the phone, choose the little plus window icon and the pair or 3 app set is added to my app edge.
Yes you see I have what's called Multi Window where out of the edge panel I can long press, then drag the app to where I want it placed on screen. Then I can re-size each app to somewhat mimic App Pairs.