I have noticed on an image that YouTube was used for an image that just included a virtual youtuber, and searching further found the tag is used either for that or just a logo.
I suggest we make a youtube logo tag for just logos and not use the youtube tag for anything.
An additional way the tag is used are the YouTube app or website or unspecified video players. For the former we could make something like "youtube video" (although it may, albeit unlikely, be a page without a video) or "youtube (site)" - and for a video player, video player.
I could knock this one out myself in a day, but before doing that I'd like to bonce this off you all.