Proton will comply with legal demands for information
Proton intentionally limits what data it has access to
Don't trust any cloud service to protect you from the authorities, trust the technical limitations you can verify. Proton is pretty good for this, in fact, one of the best. But like any service that wants to continue existing, they will honor legal demands for info.
https://arstechnica.com/information-technology/2021/09/privacy-focused-protonmail-provided-a-users-ip-address-to-authorities/
https://cyberinsider.com/protonmail-logs-users/
https://cyberinsider.com/protonmail-data-requests-user-logs/
Don't trust any cloud service to protect you from the authorities, trust the technical limitations you can verify. Proton is pretty good for this, in fact, one of the best. But like any service that wants to continue existing, they will honor legal demands for info.
And none of that relates to the VPN which, under Swiss law, is not obligated to retain any logs whatsoever.