I just tested a Samsung Odyssey with Enscape in Revit. There are some tracking issues, but I am experiencing these with Unity projects as well. They could be related to my hardware. Other than that, it works. The content is displayed correctly, and the controllers function in the same way as they do with a Vive. This is great!
I could be wrong, but by the looks of it, it seems Enscape uses the Unreal Engine. If so, it is either not 4.18, because in this version of Unreal VR on Windows MR is broken, as it is currently on Twinmotion 2018, or a modified version of Unreal. Lots of assumptions here. But if indeed Enscape uses Unreal, I hope the developers skip 4.18.
Might add, that I have SteamVR with the Windows MR plugin installed.