Fortunately, minisign does.

age doesn't replace everything PGP does, which is good, because PGP does too many things. It just replaces the use case of file encryption (which itself is arguably too general; it's perhaps best to think of age as a good fallback for encryption use cases that don't have a better domain-specific tool). See https://latacora.micro.blog/2019/07/16/the-pgp-problem.html