I have been using Proton VPN for a couple of years now due to Proton’s privacy-focused and encrypted zero-knowledge architecture. Like other VPN clients, it includes optional features that can optimize security and improve connectivity performance. Not all the features are enabled by default, but there are some great ones that I wish I had started using sooner. All the following features are available with a subscription to one of the available tiers. Also, since Proton VPN is cross-platform, you can use it on Windows, Linux, macOS, Android, and iOS.