OK, guys, I'm gonna go all-out into controversial territory :
Assuming what's left of the smaller Warsaw Pact governments and armed forces (Poland, Hungary, Czechoslovakia, etc.) will still be operational in some capacity, and bearing in mind what's hapenning in München and Finland in the last few updates of the main TL and its spinoffs...
Do you think the Soviets might just go "To hell with politeness !" and make these smaller WP leftovers their direct subordinates ? (If not out of pragmatism or necessity, then by an appeal for their obedience to the "top dog with the gun".)
Given how each of the three nations I've mentioned had bad experiences with the Soviet regime ever since they came into its sphere of influence, I wouldn't be shocked if some people in said countries (even actual authorities that are supposed to be obedient) would just rebel and tell the Soviets to screw themselves. In short, a steady build-up to an anti-Soviet backlash among the non-Soviet WP survivors. One that would be positively disastrous in the long run for any surviving Soviet army personnel and their collaborators. A superior number of surviving military equipment can help you bully the locals into obedience only for a limited amount of time. If they revolt, things will get nasty for the Soviets, especially for any smug commanders who think they can do as they please (now that Moscow is gone and no one's in a hurry to give them orders). As with all unwanted occupants in history, the post-Exchange Soviet armies strewn across the remnants of Germany and western WP countries are in for some tough times: They're in a foreign country, will run out of supplies sooner or later, and if they resort to only bullying the surviving military and the civilian populace, they risk gradually losing what little support they had among their supposed allies.
The reasoning behind the backlash would probably go something like this: "We fought you're damned war against the Americans and Western Europeans just as you told us to do. We did our duty, we did our best. But we've lost nearly everything, our countries are almost completely irradiated write-offs with hideously crippled infrastructure and tens of millions of dead. We're worse off than the USSR, since it could at least shrug off some of the attacks due to its size. We didn't have that advantage, we've paid a horryfying price just to make the glory hounds in Moscow happy - and you know that well ! So... Either you Soviets start treating us seriously and cooperating with us, or you might as well get paranoid every time you go to sleep. Double-cross us and you won't get any supplies and won't be granted safe passage back home, if you'll wish to leave in the future..."
Sounds a bit cruel towards the Soviets ? Yes, especially if the victims would be the more sane common soldiers.
But I wouldn't be surprised by reactions like this. There's a certain threshold to being someone's meatshield/whipping boy, even prior to the events of the war. And I personally can't imagine the survivors of the western WP being a naive "Yes-man" to the Soviets for all eternity. If you thought the Brits showed tranquil fury towards those poor Soviet submariners (before deciding to comfort them), you haven't seen nothing yet in terms of anger.