I use the official case for Z Fold 4 only because of the camera bump. The shape of the camera bump make it almost impossible to stay still on the table.
But I think Pixel Fold doesn't have the issue if I choose it. The shape can stay still on the table I think.
There were no suitable cases for the Z Fold 4 and other foldable phones (other than the one ugly Spigen case that adds one inch of extra width) that would allow me to enable good protection.