Most problems of the current Fediverse is because of how the Internet was build.
Current Internet has no social identity format, no open micropayment standard, no encryption by default so apps must reinvent their own, metadata leakages, namespaces like IP addresses and domains having centralized control, firewalls, NATs and other roadblocks disallowing most devices to host stuff…
Half of the Fediverse is hosted on Hetzner and the second half mostly on other big providers. User IDs are controlled by server admins. Even Nostr is just a band aid with it’s relays doing something Internet should be able to do - send data from device to device.