On non-Ubuntu distros, for ProtonVPN, I’ve had better luck using their CLI interface. It works just fine, it just means learning a bit of the terminal. I like the automatic killswitch, especially since I’m a habitual pirate.

Proton advises against using third-party repos, which I feel is sensible. But for all other options, I tend to appreciate the plug-and-play nature of .deb and .rpm packages and Flatpaks. Flatseal puts my paranoia at ease. Set and forget. :)

Proton’s a bit behind the curve, feature-wise, but I trust them more than I trust NordVPN or ExpressVPN. For one, their advertisement blocker ACTUALLY works as advertised.