Gas is, well, a gas. The only way to transport it in the absence of pipelines is liquifying it. LNG infrastructure is very hard to build, and right now there's no additional LNG capacity to ship gas to Europe. It takes a while to build.

See https://doomberg.substack.com/p/have-fun-staying-cold

From last November

Obviously, and obviously transporting and storing nat gas drives pretty large basis spreads globally.

You still haven’t addressed WHY the fundamental price setting mechanism of nat gas would be any different from any other commodity.