Unfortunately, this is not the whole world, there are many authoritarian regimes that support Russia, so I depicted only democratic countries

It should be understood that all countries are democratic on paper, including Russia, but this does not prevent it from destroying political opponents, preventing parties from participating in elections and persecuting freedom of speech and personality. I depicted only some of the democratic countries that supported Ukraine in the early days of the war, and not all democratic countries in general.

Polish flag? Poland support regime which organized genocide against Polish nation in 1943?

Poland, as far as I know, condemns the National Socialist ideology, because they themselves suffered from Hitler's aggression.
If we talk about the current state of Poland's politics, then this is a conservative democracy, in the last elections they were almost removed from government