NordVPN is described as 'Veteran VPN with military-grade encryption, unrestricted access, vast servers in 43 locations, high-speed connections, and a strict no-logs policy' and is a popular VPN service in the security & privacy category. There are more than 100 alternatives to NordVPN for a variety of platforms, including Android, Windows, Mac, iPhone and iPad apps. The best NordVPN alternative is Proton VPN, which is both free and Open Source. Other great apps like NordVPN are Mullvad VPN, Tor VPN, Windscribe and 1.1.1.1.
Ok I must admit I was trying to use it on Linux (Ubuntu, CentOS, Debian) but I bought I 5 years plan with StaticIP and all the options and I, basically, never use it and end signing with another VPN provider. Why I didn't cancel ? Because they convince me the issue was on my side, so they hold me on call/chat during the trial. Few technicians as being helpful and knows the infra, but most of them are useless.