Hello @LaTrendaL ,
Video files are generally too large to be embedded and sent through emails as it is, and most email programs will outwardly reject emails that try to contain such large, singular file types. Linking to videos is currently the industry best practice, regardless of ESP used.
Videos need to be hosted on a dedicated video site, social platform, or cloud drive, and then linked to. For sites with dedicated video players, the video block can be utilized. For cloud drives and other non-video sites, you'd need to link using an image, button, or some text.
See also:
Inserting text links
Inserting image links
Inserting button links
... View more