Does this help?

https://www.openpgp.org/software/

oh.

I don't actually.

I added a 🤣 emote because it took it as the age old wtf how does this work reputation it has.

If they baked it into Proton Mail,I would use it but I think many of my contacts would not like it. ☹️

If you are implementing it on your Nostr email project, make it simple, easy and accessible.

I use it to verify software releases.