When you run your regex pattern through Regex 101 (https://regex101.com), it shows a full match for every domain you have listed.
I don't think the regex you have written is correct for the patterns you wish to block and not block.
Also note that not every regex that passes Regex 101 checks will work with Pi-Hole properly, since Pi-Hole uses a specific set of regex rules (POSIX ERE). So, after you get your regex squared away on Regex 101, you will want to enable regex debug mode per the link below. This will trigger an entry in /var/log/pihole-FTL.log the first time each regex filter blocks a domain. You can use dig commands and see if your regex works with Pi-Hole.
Ooops, there was a typo in the regex pattern, it should be r.+?---.*?-.*?(?<!-cune)\.googlevideo\.com. There is an error with the regex expression I wrote: ERROR compiling regex on line 2: Invalid preceding regular expression (13). How could I fix it? Im not familiar with POSIX ERE unfortunetly.
Currently I do not have acces to the server, however the line 2 of regex.list is the regex expression I talked about: r.+?---.*?-.*?(?<!-crune)\.googlevideo\.com