Loose Hinge
I will say the hinge design the phone feels a bit loose when open, similar to early Galaxy Folds. Open the phone and then wiggle both sides. You can actually feel the 2 sides of the phone tapping into each other. Very strange.
It seems to be a normal for this hinge design (not very stiff when fully opened). Newer galaxies and Honor phones have fixed this, but it seems oppo has not. Anyone else surprised that zero reviews mention this? It definitely cheapens what is otherwise a REALLY nice experience.
And my wallpaper keeps switching to "dark mode" no matter what I do. I'm sure they'll fix that though.
Edit: my last few foldables were Galaxy Fold 7 (very stiff hinge), Honor Magic V2 (had springs in it that held the phone fully open, no flex modes), and Pixel Fold (similar wobbly hinge to z find N6).