Github has a very cool business model. They launch most of their services for free in public repos and have a pay for using them in private repos. So when people use them and like them in open environment, github get free advertisements for potential customers that might use that in closed environment.

Google also has a similar model with its gsuite, but it has its advertisements business model over it that makes it look bad.

Personally, i like github's model but google gets a bad light for not being privacy focussed, while github is thriving.