You can embed any Vimeo video — your own or someone else's.
1. Copy the video's link
From the address bar or Vimeo's own share button. A link like
vimeo.com/123456789 is all you need; there is no embed code to hunt for.
2. Paste it onto an empty line
It turns into the video immediately, and it plays right there in the editor so
you can check it before you publish. If you prefer, press / and pick Video
or embed and paste the link into the block instead.
See Video and embeds for everything else that works this way.