Winter doesn't stop activities by prepared and trained forces such as Sweden, Finland etc... who have competencies to pass on to Ukraine. But, Russia, continue to think that Winter is your friend, even as you fail to provide fuel, food and munitions to your troops in the theatre.
Yes, that was what I was trying to suggest. Unless the Russkies can provide suitable winter gear to their troops things will get difficult. At least to the Russians' benefit, transporting over frozen, as opposed to muddy, ground is easier. Fuel will be a factor. I believe I saw a post recently from the Russkies that there was an issue with winter diesel as it had been sold off so be prepared. Damn the free market economy! (joke)