On: ProtonVPN

[middleclick]

As a general rule of thumb, I have used various VPN services and made sure to never use their clients. Downloading an OpenVPN configuration file IMO seems the best way to go about it.

[dagrha → middleclick]

Speaking of PIA and not using the provider's client, I've written this simple python script that populates PIA OpenVPN routes for NetworkManager on a bunch of Linux distributions, which then pop right into the system tray or are accessible from nmcli, etc. (https://github.com/dagrha/pypia)

[sr2 → middleclick]

Yeah and use a decent client like Viscosity, or if your O.S supports OpenVPN config files natively, just use them.