“Must be a total coincidence that it is quieting down in Ukraine just as the Russian economy crashes.”
Winter, and the destruction of 2/3rds of Ukraine’s military hardware is more responsible for that, than anything else.
Both sides are rearming, so have no fear, it will light up again in the spring, IMHO.
(IF Kiev isn’t on fire again by then from the internal politics)
Putin’s boys are put off by the cold?