This does not apply to the server. Only the client app is open source. The server is proprietary.

Proton will still be a for-profit company that will be majority-controlled by a non-profit. The non-profit will not own all of the business either, so there will still be profits going to shareholders.

Which is the same structure that Proton is moving to.

If checking their email a couple of times per year is too high a requirement, I would not recommend the time and effort necessary to maintain a mail server. Even people who enjoy self-hosting often do not want to host a mail server.

Signal still requires a phone number to use it. What they recently added is the ability to message people without needing to know their phone number.

Create a different alias for everything using a service like:

• SimpleLogin
• Addy (AnonAddy)
• Firefox Relay
• Apple Hide My Email

• free stuff
• subscription

Pick one

There is a setting to automatically check for updates. I would see if that is enabled.

Telegram still requires a phone number to sign up, but they have had usernames that can be used to contact people without needing their phone number. Signal is only now finally rolling out usernames.

Plus donations to Mozilla cannot even be used for Firefox development due to the structure of the foundation and corporation.

Thunder is my favorite with Voyager a close second.

Firefox Sync is end-to-end encrypted and open source, so your data is secure.

I would stick with one of the open source apps. Thunder is my favorite, but Voyager and Eternity are good as well.

Same. It may lack encryption that many look for, but I have accepted that email is too old to ever be truly secure. Most email is either coming from, or going to services provided by big tech companies anyway. I prefer an open, fully standards compliant email service over a locked down service that provides minimal additional security.

Brave is also open source.

I agree that Kagi isn’t great from a privacy perspective. But in regards to clearing cookies, they do have a session link feature that uses a token to avoid the need to sign in all the time.

Graphene OS > iOS > Stock Android

The same is true for stock Android devices. Unless you are using a custom ROM without Google Play Services, there is more proprietary software than open source running on Android devices.