Leaving this for others who might need it (as did I). Extracting the YouTube ID has many benefits, including easier access to the YouTube API functions as well as pulling the default poster image for the video.
To achieve this simply use “:Extract with Regex” and use the following expression:
(?<=watch?v=|/videos/|embed/|youtu.be/|/v/|watch?v%3D|%2Fvideos%2F|embed%2F|youtu.be%2F|%2Fv%2F)[^#&?\n]*
To get YouTube’s poster image (the image that is shown before playback). Just use this path: https://img.youtube.com/vi/{YouTube video ID}/0.jpg
It should work for over 90% of YouTube domains/path variations. You can test if this works for you here.