It is a full subscription. I did some online research. It seems the issue appears to be something with the graphics unit ID locking down by the DRM protection. When I try to play something you click play, you see how it starts to opening the window in immediately closes again. Some suggest to use a different SMBIOS but since it's opencore its obviously not that easy?
Beside apple tv app everything else is working, FT, imessage etc..