I have an S8, but not yet bought any VR accessory; and I know that Samsung recently added Daydream VR support to the phone. From what I've read, Daydream case is far simpler with most of the sensors in the phone; while Gear VR has sensors in the headset itself.
So it appears to me that other than the controllers, Gear VR headset in hardware terms should cover everything the Daydream headset does. If I buy the 2017 Gear VR (for the controller), will I also be able to view Daydream VR titles, and how will the different controller affect the compatibility?