both sites where? are you talking about some specific sites you have in your mind instead of the topic of discussion? I never once mentioned video streaming sites, besides youtube. And I wasn't referring to torrents either. Sites like Anna's Archive (the largest pirate database on the web) hosts their files. If you download from them you are downloading the full file, no compression besides maybe gzip. Usenet, you are downloading the full file, no compression again, besides gzip or whatever compression the uploader used. With usenet at least you'll be pulling from a host rather than the site that has the links, but the content is still being downloaded. Downloading the full file is always more resource intensive than watching a streamed version. That's why Youtube doesn't want you streaming in 4k or high bitrates. It's literally why YouTube Premium exists.