It has functionality to let you set up a reverse proxy (in beta). But you can access all your services by using the zero trust vpn

Yes, it is easier and safer for someone who doesn’t know what they are doing to set up.

Why not use a zero trust VPN like netbird? It is fully open source.

You can create a reverse proxy that requires a password to get through to jellyfin. I think there is a limit of like 5 for this though (unless you pay or self host).