Disney+, HBO, most streaming services not called Netflix use CDN services. Disney+ is heavily multi-CDN, at least they were at launch: https://www.csimagazine.com/csi/Disney-eating-up-Euro-peerin....

HBO also uses multiple CDNs, here is a reference from 2020 about GoT: https://www.prnewswire.com/news-releases/hbo-streams-game-of....

They were also mad that one of their distribution partners last week leaked the finale of House of the Dragon early: https://www.theguardian.com/tv-and-radio/2022/oct/21/house-o....

I don't have a link handy, but even Amazon has been known to use CDNs outside of CloudFront for their live events.