Just installed 0.2.1 and tried the Samsung "Time Magician" 3D test video:
https://www.youtube.com/watch?v=F1-7tpiBCks
with the curved screen option turned on. Testing with the 4K version of the video sideloaded into the device.
With the flat screen, the 3D effect is very obvious. With curved screen it seems like it's 2D, or at a minimum the 3D effect is drastically reduced.