Using the thumbnail URL: when in a table view you can double click on the formula result to highlight it and then copy and paste that URL directly into a page or into a File & media property's Embed link field.
Thumbnail URL
if(test(prop("Video URL"), "youtube.com/|youtu.be/"), "https://img.youtube.com/vi/" + if(contains(prop("Video URL"), "youtube"), replace(replace(prop("Video URL"), ".+?(v=)", ""), "&(.*)", ""), if(contains(prop("Video URL"), "youtu.be"), replace(replace(prop("Video URL"), ".+?(e/)", ""), "[?](.*)", ""), "")) + "/maxresdefault.jpg", "")
Explanation
if(test(prop("Video URL"), "youtube.com/|youtu.be/"),Check to see if Video URL contains either
youtube.com/ or youtu.be/. If it does do the following."https://img.youtube.com/vi/" +Include the start of the YouTube thumbnail URL.
if(contains(prop("Video URL"), "youtube.com"),Check to see if Video URL contains
youtube. If it does do the following.replace(replace(prop("Video URL"), ".+?(v=)", ""), "&(.*)", ""),First, match everything up to and including
v= and replace it with nothing. Secondly, match everything after and including & and replace it with nothing. This will leave you with the video ID, such as oTahLEX3NXoif(contains(prop("Video URL"), "youtu.be"),If Video URL doesn't contain
youtube then check to see if it contains youtu.be instead. If it does do the following.replace(replace(prop("Video URL"), ".+?(e/)", ""), "[?](.*)", ""),First, match everything up to and including
e/ and replace it with nothing. Secondly, match everything after and including ? and replace it with nothing. This will leave you with the video ID, such as oTahLEX3NXo+ "/maxresdefault.jpg",Include the end of the YouTube thumbnail URL.
"")If Video URL contains neither
youtube.com/ or youtu.be/ then display nothing.
