As a client in the coop mode, i try to buy a gun and the game crashes. No items the client takes will be shown in the buy menu. The host can look in each tabs but nothing will show up unless the host take something.
As a client, you have to select a name in the shop menu and the game will always crash.
My vr headset is Oculus Quest 2 with classic controller.
I play the game on steamVR trough Virtual desktop.