This message is a part of the widespread Kremlin’s narrative about the Russophobic Poland, which refuses to accept the official Russian view on WWII and its political consequences.
There will be no public events commemorating the anniversary of the capture of the city of Szczecin not because of the alleged “virus of Polish Russophobia”, but because of the occupation of Poland after WWII. In 1944-1945, the USSR occupied Poland, establishing the undemocratic and repressive Communist Poland. De facto, Poland appeared under the Soviet military occupation until 1989, while the Russian troops were withdrawn from Poland only in 1993.
The very fact that the Red Army captured Warsaw and pushed the German troops out of Poland in 1945 does not mean that the USSR brought freedom to the Polish people. According to the statements of the Polish MFA, Poland respects the sacrifice of the Soviet soldiers in the fight with Nazism, but in 1945, Stalin's regime brought to Poland terror and atrocities. The Red Army liberated Warsaw from Nazi occupation, but it didn’t mean liberty for Poland as the Soviet Army stayed in Poland for 48 years, which resulted in decades of communist oppression.
See other examples referring to the Soviet occupation of Poland - It is thanks to Russia that Poland today exists as a country and the Red Army liberated Poland and preserved the country’s economic power.