In the export settings for Android, there is the “32 Bits Framebuffer” option. And if it is not turned on, then what framebuffer will be used?
i think it is used to store depth information
I guess a 16-bit framebuffer will be used when the option is disabled. That said, I'm not sure if the option is still effective nowadays (try it and see).
Thanks for the comments! As I understand it, is this somehow related to the hardware of target devices?