Last time I checked - Valve has no game servers/entry nodes in Russia.
Western Russia connects to Sweden or Poland. Northern European and Eastern European countries connect through the same nodes.
Connections within Valve network are handled internally (since they can tune it for better latency, etc.) and you don't even know where the actual game server is hosted.
So there is always a big mix of players no matter where you are in Europe.
Fun thought: it depends on how much throughput can be handled by Starlink, but Valve could waste some money on it to bring players closer from further away. They already have the dynamic, latency based entry node selection set up. If they hooked up some of the internal network through Starlink, it could be amazing low latency cross-continent gaming. And games like CS:GO and Dota 2 doesn't require too much bandwidth.
