Ugh, why PGP encryption...

Anyway, sure we can implement that. Do they have documentation on the actual JSON format?

Actually one can export also the unencrypted JSON. ProtonPass currently supports Credentials with TOTP, Notes, CreditCards and Passkeys (not yet released.. but will happen soon).
I found a few parser implementations:

• Bitwarden https://github.com/bitwarden/clients/blob/main/libs/importer/src/importers/protonpass/protonpass-json-importer.ts (sample data https://github.com/bitwarden/clients/blob/main/libs/importer/spec/test-data/protonpass-json/protonpass.json.ts)
• custom script for Keepassxc CSV https://gist.github.com/nikspyratos/bd0b5ef05a4d82d2d0425cb4be9844db

I've not found an official JSON ProtonPass schema.

I thought I might take a stab at this as I'm wanting this feature. Doesn't look too hard to implement the version without encryption and just following along with what was done for Bitwarden. I don't know how to handle the PGP encryption stuff, but I'm already up and parsing the non-encrypted export. If you have any pointers on the PGP side of things, I'm willing to go after that as well.