You can set up controls in any way you want and I recommend spending some time until you come up with a setup you're comfortable with. Make sure you have "allow seconary button mappings" on under VR options. This allows you to use the grip buttons as modifiers, greatly expanding the number of inputs you can map to limited number of buttons on the Quest controllers. I got rid of the jump and crouch buttons in favour of mapping all weapons except for the pistol to their own (combination of) buttons. There seems to be a bug which prevents you from cycling to the "lesser" shotgun/melee option once you get the SSG/chainsaw, so I have a "previous weapon" input mapped as well, which also allows me to get to the pistol if I want to for some reason.