Inline video embed in a guide page - supported, or use a linked thumbnail?

We keep the integration guide short, and I want to swap one long screenshot sequence for a 30-second walkthrough clip. Two things I could not find documented: does the docs renderer support an inline video embed (mp4 or an iframe), or is a linked thumbnail still the recommended pattern? And if embeds are supported, is there a width where the layout breaks on mobile? For context the clips we ship are short vertical mp4 files produced and captioned with FacelessVideos , not long screen recordings, so file size stays small but the aspect ratio is 9:16. Wanted to check the recommended approach before rewriting the page.