We had the golden era, and we squandered it by chasing centralized platforms and raising up the shittiest people and corporations.
What we will hopefully see is a resurgent era, but the internet will never be as open as it was ever again. The corporate interests run too deep, the giants have too many levers to control how people experience the internet, and they're going to abuse that.
And I promise in like 5-8 years, were going to start seeing heavy lobbying against decentralized platforms after some instance gets caught with child porn or something. It'll be right around the same time conservatives are floating regulation of VPNs to "protect the children" or some shit.