I have a declared fascist father in law, and he sided with Putin from the very start (his opinions are generally an unimaginative mirror of what he reads in the major Italian newspaper he reads)
Here anti-Russian notion was written in genes in cruel ways for generations
There're plenty of polls about views on Russian-Ukraine war. And views are pretty one sided.
Another division is people who were moved here by soviet government. It's not uncommon that the old generation, born outside of Lithuania, lives in Russian media, sometimes not even speaking Lithuanian after decades of living here. Yet their (grand)children are well integrated into Lithuanian society, including anti-Russian notion.
.... and then we have our own bunch of Russofiles for various reasons. Including among youth, and even what you'd call liberal youth. Some famous people now do incredible stunts to cover pre-Russian-invasion actions. While others stick to their guns.
Also, your question is far more complex and not comparable to the russo-ukraine war.
For one, the geo-political situation prior to WW2 and especially compared to today might aswell be from a completely different planet. Prior to world war 2, a intranational political union like the EU did not exist, not to mention most countries in europe weren't democracies at the time.