I was trying to post a video but it wouldn't show up as available to upload in Jerboa, is this a per community thing or is it across all of lemmy? It would make sense because videos are inherently a larger file size, if that is the reason
From an instance Admin perspective - image hosting eats up a tonne of space, allowing video would be a much bigger undertaking. Even Peertube instances tend to restrict user numbers and the amount they can upload.
Don't know but I wouldn't recommend it. Your instance may have them disabled because they are expensive to host. You can host them on Streamable for free and without an account but they expire after 3 days. Create an account and I think you get 90 days. 250mb max.
If there is one thing thats comically inconsistent and in desperate need of work done to it, it be GIFs and Videos. It seems with everything uploaded you get a different result. We really need some standartification when it comes to it