To get your “Video URL” from Vimeo, you need to find your Vimeo video distribution link, not the link to the video page, the video distribution link starts with “player.vimeo.com” and it’s a long link (see example link below).
https://player.vimeo.com/external/651939148.m3u8?s=cd22fd5f719e58fea891ad6ac90774dd34141e20
Here is a step-by-step on how to get it.
Note: you need to have a Vimeo Pro/Standard or higher account in order to have direct access to the video file URL.