Most secure browsers for things like bank logins

[TheDoc]

@Cincinnatus

That being said, would a browser from Snap still be a better option than Flatpak (flathub)?

It’s best to avoid Flatpak when installing Chromium or Firefox based browsers. Snap seems to provide better support for browser sandboxing, but it’s still recommended against for some browsers such as Brave.

@Cincinnatus

Also, would a browser such as Chrome, Chromium, or Brave be more secure than using something such as Ungoogled chromium, Librewolf, or Mullvad?

Chromium-based browsers like Brave should have better sandboxing than Firefox-based browsers, so in a sense yes. However, if you’re only using this for trusted websites like banking, it shouldn’t matter much.

One important thing to note is the quality of “Chromium” varies depending on which build you’re using as there is not an official build provided by Google. I heard in the past there were some security issues with how some Linux distributions built Chromium (like Fedora) though that might be fixed now.

@Cincinnatus

My thinking on this is Chrome or Chromium is more up to date. However, Ungoogled chromium or Mullvad for instance has more things disabled in the browser leaving me to believe that they would have a much smaller attack surface?

Any of the recommended browsers should be fine for your use case of logging into trusted websites. If you want to get the best of both worlds (security & privacy) stick with Brave.