This article is using Vaultwarden, not the Bitwarden server. It's wrongly referring to Vaultwarden as "BYOPM hosts a Bitwarden instance" and "the Docker Image of Bitwarden." It is not, it is hosting a Vaultwarden instance. This is an issue as people using Vaultwarden report bugs to the Bitwarden project, where they can't be helped.
Shows the loading spinner forever for me. Turns out it tries to use a local storage feature that's not available in Firefox private windows. Might want to catch that error and show a message, as I had to open the console to find out I don't need to wait for it.
I actually tried to use the screenshot. Autoplay is disabled in my browser, I suppose it's easier to see that it's not a webapp when the video is playing.