Was Soviet Union impeccable in its attitude towards Jews?

One of the latest accusations that Vladimir Putin made towards Poland was that the state colluded with Adolf Hitler’s Third Reich to “solve the Jewish problem, while in fact, it was the Soviet Union which committed multiple crimes against Jews of which Russia’s president seems to forget.

Full footage here.

The Molotov-Ribbentrop pact resulted in close cooperation between Germany and the Soviet Union, not only in the military field. Over the years 1939-1941, the Soviets handed over to the Germans around 350 people, many of them Jews. About 500 Jews, including Polish Army chief rabbi Baruch Steinberg, were among 22,000 people murdered on the orders of Joseph Stalin in the Katyn forest in 1940.

Even when the Polish army was being formed on the territory of the Soviet Union, Stalin was still reluctant to let the Jews serving in its ranks out of the country. He would go quite far in his defamations, spreading false information about the Polish authorities in order to deter Jews from enlisting in the army of Władysław Anders.

Will Putin apologise for the Soviet atrocities during the World Holocaust Forum? And what does he have to say in the case of Raoul Wallenberg, a Swedish envoy in Nazi-occupied Budapest, awarded the title of Righteous Among the Nations, who saved tens of thousands of Jews from the Holocaust, only to meet death at the hands of the Soviets, under ludicrous accusations of espionage?