I cant even get Shazam to work on many songs in tv shows, due to music sold from companies that produce music for content creators and not the public. Also not

I cant even get Shazam to work on many songs in tv shows, due to music sold from companies that produce music for content creators and not the public. Also noticed this trend is now happening into youtube creators using leased music from their creator company or 3rd party youtube music provider. How the heck is Youtube able to identify music if Shazam cant?