In the same vein of simplifying PGP, I wrote this little app a while ago:

https://prettyeasyprivacy.xyz

Basically a simple GUI on top of PGP. No CLI headache and is completely independent of OS. Encrypted sources follow PGP protocol so are completely backward compatible with CLI tools. Also supports both text and file encryption/decryption.

PGP impl uses proton's openPgp.js