What use-case is there for agent forwarding? My work does have machines only accessible through bastion hosts, but I never find myself using agent forwarding. I

What use-case is there for agent forwarding? My work does have machines only accessible through bastion hosts, but I never find myself using agent forwarding. It's too easy to ProxyJump (e.g. like you mention, it works automatically thanks to .ssh/config) or if a direct connection between remote hosts is required, generate a new key (e.g. to use rsync).