The corporate web may be dying/reinventing itself. Everyone talks about FOSS and having a user driven experience.
You say that, but I would politely suggest that your use of 'everyone' is narrow to your personal experience, at a guess with a focus on those who are either IT professionals or enthusiastic amateurs.
90+ of the world don't care in the least. They want the functionality to access and share information and connect with either their friends or a wider audience. They want reliable and simple functionality. Those people don't really care if they're playing in a corporate walled garden.
FOSS projects with user ownership are a brilliant part of the modern tech landscape but don't be deluded into thinking they're a vast global paradigm shift