Google "peertube", click the first link, put "panda falling over" in the search field - how is that different from YouTube? (Including the first step - lots of older people Google YouTube to go to YouTube)
The problem is the next step because there is no video of a panda falling over, but that's not related to the peertube implementation or UX.
I did that, and the "first link" is "join peer tube", with no search field.
Even when I eventually find peertube.ch (Which I guess is right, because there are a ton of links on joinpeertube to other "instances") there's no videos with pandas at all there, though I don't actually know if this example was intended to be possible.
I do not think my parents would pass this test, even if the video existed.
The problem is the next step because there is no video of a panda falling over, but that's not related to the peertube implementation or UX.