There is something fundamental you are not telling us about your network configuration and what you are trying to do.
Are you using IPv6 for your ssh?
So your PC has only 1 IP address and it is directly connected and is routable from the whole internet without NAT or any port forwarding?
You need an IPv4 route from your PC to the rPI.
Can you show the terminal output of this?
Like mentioned
so if it does not work in your case, I really suspect There is something fundamental you are not telling us about your network configuration and what you are trying to do.