SSH into the VPS from the laptop with port-forwading:

ssh -R 8000:localhost:80 mydomain.xyz

Now you should be able to access your local laptop on port 8000 of the VPS. There are a few easy steps you can add if you want to make it a bit more ergonomic or permanent. If you don't want to use an alternate port, you can just forward the port on the VPS with iptables.

iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8000

If you want the link to be more permanent, I'd suggest using wireguard instead of ssh. That's a little more effort, but not ridiculous.