When you see this specific file naming convention, it refers to the technical specifications of the video file:
The in 480p is most useful for commuters on a train with poor internet who want Hindi dialogue and English subtitles simultaneously. But for home viewing, subscribe to Netflix for one month (roughly the cost of a coffee) and stream the 1080p HDR version without any malware risk.
: The original English audio (or English dub, as the original language of the show is French) is included.
Only choose 480p if bandwidth or storage is your absolute priority. For any screen larger than 10 inches, aim for 720p or 1080p.