Is there a way to have the right stick as the mouse cursor and triggers as left/right mouse clicks in desktop mode similar to the steamdeck with the ROG Ally?
bump this to the top
I’m waiting for the answer too 
Please help
Desktop controls section should allow you to edit this. Steam has to be running in Desktop Mode and you can bind the joystick in the Desktop Layout like the Steam Deck.
I found in the latest version that you can hold down the Armory Crate button and it puts it into mouse cursor mode with the right stick and the right shoulder is left click and right trigger is right click. Works well