On https://bisq.network/downloads/, the PGP Public Key link for both Bisq1 and Bisq2 points to a copy of key F806F422E222AA02, but the Bisq2 .deb file is not signed with that key:
$ gpg --verify Bisq-2.1.2.deb.asc
gpg: assuming signed data in 'Bisq-2.1.2.deb'
gpg: Signature made Fri 18 Oct 2024 10:17:55 PM PDT
gpg: using RSA key B8A5D214ADFAA387A14C8BCF02AA2BAE387C8307
gpg: Can't check signature: No public key
On https://bisq.network/downloads/, the PGP Public Key link for both Bisq1 and Bisq2 points to a copy of key
F806F422E222AA02, but the Bisq2 .deb file is not signed with that key: