Options for everything are desperately needed (and they need to be accessible from everywhere, not just the main menu)
Separate settings for VR & desktop modes where applicable.
Tailor the rendering to my hardware for a smoother experience.
FOV slider to make better use of my ultra-wide monitor.
Everything audio. Volumes and balance, Mute the default Sansar soundscape when uploading/rendering. Adjust spatial audio (I'm half deaf).
Configure the controls & input sources.
and a million other things.