pass through should always work not?
not with dolby vision ... it has proprietry components in standard playback chain
DV disc has 2 video stream ... one normal 10bit 4K hdr and one 1080p DV stream ... players are expected to (1) combine those streams to produce 12bit DV stream and (2) output that through hdmi to DV displays.
Step (1) no one knows how to do ... same for step (2) ... ppl pay licence fee to get those into their product ... and so far none has been granted to PC based players
Now some DV TV have build in players that can do DV ... but those only accept mp4 ... so no Atmos or DTSX.
DV is a mess ... my current 2016 LG OLED has DV logo ... but it cannot play certain new titles with newer DV version ... and it cannot do XBox DV too. Basically, buying latest TV with DV logo does not guarantee it will be compatible with newer version of DV in the future