I think proton bridge is open source as well. I have all my emails locally on thunderbird
And, and what will happen when they decide to discontinue the bridge? What happens when you’re running on iOS and you can’t have the bridge? You’ll be forced into their apps, that’s pretty locked. Besides does the bridge even provide contacts and calendars to Thunderbird? Last time o checked it didn’t. What about notes?
Iirc, all the emails are stored locally so I guess if proton goes down, you can still access the emails on your phone. Same with cakendar, contacts in proton, and hopefully notes
Edit: nevermind, the emails are only stored if you accessed them before.