I remembered a previous post where Remy gave some tips on how to decrypt PGP messages and following the URL provided with some examples, it was easier than expected
https://community.passbolt.com/t/pgp-key-decryption/6545
You can also find more examples here, just in case you want to learn more about PGP encrypting and decrypting:
https://pranabdas.github.io/linux/pgp/