The U22X-J / AM6+ can now use CE-NG (rather than CE-NG-DV) with the discovery of a 64bit s905x2 dovi.ko module that appears to work on any Dolby Vision certified G12 device (maybe even SM1).
CE-NG-DV and CE-NG both have the same Dolby Vision code, so DV playback is no better or worse. It’s confirmed working on the Minix U22X-J and 2nd gen Cube.
I created a separate post here since this will involve switching build lines and dovi modules. Setup is very easy.