Soviet forces "liberated" Bornhol, the little Danish island in the Baltic (actually closer to Sweden than to Denmark).
They only left in 1946 (!)
The claim was thaqt Denmark had aided Germany and was therefore not "liberated" area, but "conquered" area. A big difference.
Whether East Germany would have been alowed to get much bigger is a good question. Doubtful, as the whole idea was to keep Germany from ever rising again (and thereby posing a threat to Soviet).
It could have been feasible for Soviet to "liberate" Bavaria, Denmark and the entire Baltic Germany. They could (probably) have conquered both Finland and Sweden as well (for whatever reason).
So, is the question really: Could Soviet have increased its territory and influence in Western Europe? By active occupation?
The answer is probably Yes, they could, but maybe the cost would have been too high. After all, Soviet was not in a good shape after WWII.
UK had stated thaty could not see a conflict with Soviet in Europe. Neither could US forces be called up again.
Ivan