WireGuard VPN Vs OpenVPN and IPsec

https://www.youtube.com/watch?v=KzcCrW0J61A&ab_channel=VPNpro

VPN provider:  Using or based on WireGuard:

https://nordvpn.com/  ( RAM-only server )

VPN provider:   Not using:

ExpressVPN, PrivateVPN and TunnelBear