It did include links, but they don't seem to have transposed in the copied text above. One was from the docs (https://docs.getodk.org/form-question-types/#including-media-files-in-choices) and the others were forum posts, [Dynamic media from CSV; Video in choice list from CSV] Dynamic media - video in choice list from dynamic CSV
Glad it's not just me that thinks the answer might not be entirely accurate... It wasn't meant to make things up!