Does the game support HOTAS?
We support controllers which are on this list.
If it is listed above (and for the Meta Quest version, it should be under the "Android" column), then your hardware should work and the only thing you have to do is to check the settings / controls while in-game. In the special panel that you will find there - you can operate using touch controllers from your VR headset.
It should be possible to customize actions by double-clicking on the action and clicking the joystick buttons.
Note for SteamVR users: having potential HOTAS issues - go to Steam game properties/Controller tab and after disabling Steam Input - try again to set your changes in terms of controls mapping, while in-game - in the settings/controls window.