In fact, I don’t even have problems with Atmos tracks, at least until now.
But the reason I had to disable at least TrueHD passthrough is because I got a new soundbar and it has a couple of different sound modes, like music, movies, standard etc. but those are not selectable when a Dolby Atmos or DTS:X track is played, because if the soundbar detects a 3D audio track it changes to a specific, not changeable sound mode. The problem with that is, the soundbar seems to lower the volume in loud scenes and for me the movie comes completely unwatchable.
And before anyone asks, yes it has a “auto volume” setting, which is set to “off”. In fact this setting is also not changeable when a 3D audio track is played.
I hope I can return this soundbar.
So that is the reason I asked for DTS behaviour, even though I haven’t tried if this volume lowering problem also exists with DTS:X tracks.