Googlebot never makes up URLs. It crawls URLs because it finds links to them. If Google is crawling a URL, it must be linked from somewhere on the web.
In this case, one bad link into a page with an extra trailing slash probably caused your site to show additional broken links to Googlebot.
By default, web servers and PHP allow any additional path to be ...
i had the same problem, got the solution, after a few brain storming i found that the solution was very simple- in my case at least :)- .
The video embedded through wp elementor plugin, i changed the privacy option settings from default to "on", yes it was that simple!