The dude in the zoo video is dab smack in the middle of what i would call “home video”. Some person with a video recoding device points it at their life withouth much thinking about what is that they want to say or how. It’s clearly not a nature documentary, though there are elephants on the picture.

Veratassium videos are much more intentional. The content creator clearly has thought about what they want to talk about, and how they want to talk about it. They hired a camera person and very often special cameras or drones to shoot the best footage to illustrate the content. Each video is a mini documentary about a fascinating topic, with expert interviews, experiments and models.

I think it is a disservice to call this second type of video “home video”. Doesn’t make sense to mix these two together in any sense of the word.

Venue isn't the defining difference, no. Some combination of intent and skill are. At least thats what I think.