http://nksecur5aoxbew7x4t2jebk7ordomil3a4xubeamno76zexicppwhiad.onion/how-to-pgp.html
The Ed25519/cv25519 ECC keys are default in GnuPG 2.3.0 and are the preferred type in the LibrePGP Message Format and Autocrypt standards. Many of us still are on older (buster) Debian based distributions (Tails, Whonix) which don't yet include the new version. Support for GnuPG 2.2 will drop at the end of 2024 .