Typically an .MKV or .MP4 container to support multiple audio streams and subtitles.
The tag indicates this is a scene or P2P release intended for digital archival. DLMux files are preferred by international audiences as they preserve the original English audio alongside the dubbed Italian track. Bull.S06E10-11.ITA.DLMux.x264-UBi
Italian (ITA) included as a primary or secondary track. Typically an