I believe google hangouts and xmpp would like to have a word with you. There was probably a universe where federated xmpp was as ubiquitous as sms, but in this universe, google federated, brought users over with cool features, and then defederated when they had all the users.

If you want another example from the same company in modern times, look at chrome and http/css/js. Google’s chokehold on the web ecosystem with chrome means that whatever they do, everyone else has to follow suit or not be compatible with the browser that something like ~75-90% of users use