This seems to be a technically. If Russia withdraws from Ukraine tonight then tomorrow Europe would be far more like to take significant steps to get the gas and payment flowing.
More likely maybe but there are probably technical hurdles now too. Embargo’s don’t always get lifted. Russia would be forced to pay reputations, and parts aren’t available or repair so can’t be used immediately. It would take months or years to unwind this.
My points is that the immediate future (3 months) has already been decided in terms of gas prices and availability. Actions now could not meaningful affect that