Yeah I don’t know, there’s little information about the specifics of VS10/VS12. Some devices label their dovi.ko with a vs10 and vs12 prefix, that’s how I know the s922x uses VS10 and the A311D2 used VS12.
When Dolby Vision always on is enabled in Android it’s using VS10/VS12 to do that SDR->DoVi conversion. I’ve never seen anyone do a comparison between the two to know what’s been added.