There's no way government are going to give up the control they have with big tech and companies that can be regulated and served warrants and stuff. The last thing they want is for individual decentralized citizens to be able to stand up their own systems and discuss dangerous ideas[1] without oversight.
On top of that, big tech will be eager to push things like Web Environment Integrity[2] and Private Access Tokens[3] that can ensure that unapproved (or semi or fully anonymous) actors with dangerous operating systems like linux aren't allowed to participate, at least on a first-class level. It will be packaged as "anti-spam" or "a better user experience for our users" but the fact that it massively empowers the tech companies and enables them to further entrench you into their walled gardens will absolutely not be an opportunity they want to miss.
[1]: The definition of dangerous ideas will depend on who and which party is in power. Unless the corporate overlords end up in control, in which case it will be what their managers consider dangerous.
[2]: https://en.wikipedia.org/wiki/Web_Environment_Integrity
If you want to a shining example of effective content moderation, public utility and centralization, then just look at Wikipedia. What's different about them? Non-profit.