Russia did not completely cut gas exports to Europa, but reduced in substantially, but this was a reaction to sanctions and the decision in Europa to reduce imports from Russia (but more slowly). In fact, Russia still exports to countries in Europa (to be ended in 2027), but Germany stopped gas imports from Russia in September 2022. So the order of things was that Germany decided to reduce imports from Russia, Russian then gradually reduced and then stopped exporting via pipelines to Germany, and Germany then started to import LNT gas as a replacement but - in contrast to others - not from Russia.