Age File Encryption new supports post quantum, sweet but with one caveat the public key is quite long.
Example post quantum public key: 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
Example regular public key:
age1v0p4vsugur2zmq2x6mmqd6z0l7yvsmp4848w7wwurrjfyhus6yestdc2cw