There’s a wiki page of recommended audio settings for OSMC here: Audio setup and information
This makes no mention of the issues surrounding DTS/DTS-HD pass-through that were discussed in this thread: Change to pass-through behaviour for DTS-HD
Should it perhaps be updated? The most important change is that, on the Raspberry Pi, if your receiver supports multi-channel PCM you should probably not use pass-through at all and you definitely shouldn’t use DTS pass-through. Less widely applicable (but sometimes important) is that the same applies to the Vero 4K if your receiver supports multichannel PCM but doesn’t support DTS-HD.
Possibly of interest to @Chillbo…?