PGP is a utility for encryption / signing people tried to adopt as an identity but never could because it never designed to be. It is primitive and obsolete. Tools like age, signify and kryptor solve PGP by being a far more useable encryption / signing utility. Systems like Nostr and anything to compete against it solved having a cryptographic online identity.
I have mostly recommended to avoid the social media side of it. Look at Nostr in a simplest form: a keypair as an identity.
