Apologies, I misread your comment and though you said protonvpn was untrustworthy. I’m not a VPN user so I’m not up to date with the rep of any of them, but I am a proton mail user so I was worried about the technical integrity of one of their products

As far as I understand it, proton is about the last VPN option you can trust with port forwarding

Could you explain this part please? What makes them untrustworthy?