Earlier quoted context omitted.
"Do you have a company and do you want to self host your promotional videos? Make a PeerTube instance and embed them in your website." If I'm a small company, I'd use something like BunnyCDN to stream my videos, because no one else will watch them so the benefits of Peertube are not there. If I'm a company and I'm large I should have no problems paying for something and again would use something like BunnyCDN.
It isn't easy to handle playing videos just with a CDN. You have to handle: - the different formats because browsers support different stuff - different qualities because you have to respect bandwidth visitors' bandwidth - dynamic / adaptative quality - CSP stuff - nice UI for the video etc. At this point, PeerTube handles all this for you and it's easy to setup.
I think gp's "BunnyCDN" was shorthand for the video-as-a-service Bunny Stream: https://bunny.net/stream/
That "turnkey" managed service from Bunny would be more feature-complete for businesses than self-hosting PeerTube.