Shadows_quest_pico.png
Shadows can improve visual appearance of 3D models significantly. On low end devices likes Quest (Stand alone), Pico, Android, and iOS, shadow calculation can reduce responsivity of the device, which may affect the quality of the VR experience. That is why shadows are turned off by default on those devices to give the user the ability to run larger VR experiences.
If the user knows models can run fine with shadows on, on those devices, shadow can be enabled by setting shadow quality to high
shadows_on_quest_plugin.png
Note: To have shadows working, make sure to install the latest viewer on your device from the free VR Viewer page