1. From your Vimeo Video, click SHARE and copy the text in the EMBED section of the Share Popup:

2. Add "Web Page" when creating the new Content in Odoo.

3.  EDIT the page, and find the Dynamic Content block:

4. Paste your copied code into the page.

Result:

It's not working for me. I can't drag the embed blog, the message I receive is: It is blocked for technical reasons