@thibaultmol I can't see the bridge in Debian repositories at least. https://repology.org/ doesn't know about it either.
There are still cases where ProtonMail is helpful, but as always it depends on the threat model. Proton's answer https://mastodon.social/@protonprivacy/113879107355870155 tries to reassure us by showing that Proton CEO's bootlicking doesn't extend to Venezuela's government for now.