A huge number of instructional videos would be far better-served in an illustrated post on Substack. For instance, there are a ton of Stable Diffusion instruction videos that feature essential code and other text-based information which is very hard to make usable with video content. In many cases I have had to download the video and export it raw in AviDemux in order to try and glean the text-based content from the source.

But Substack doesn't have the same sweet 'influencer' ecostructure, so many creators and posters would rather put a tute in the wrong medium and get the 'follower' benefit than suit the material to the medium.