The Tate uses YouTubes platform to promote interviews/virtual exhibitions which is easy/flexible in terms of everyone being able to access it/navigate as most people have heard of Youtube/use Youtube. It is easy to share/save the video if you wish.
The description on YouTube of the exhibition works well with the relation to the video/exhibition and provides extra links for when the exhibition reopened etc.
I use YouTube to upload my artwork too. See below, they allow me to embed them into my sketchbook/blogs page so you watch and read – shares good placement/accessibility.