I live in Finland, and just about everything you hear about Russia is real. We've lived through it, hell, everyone next to Russia has "lived through it", some even many times worse so than us. There is a reason why Estonia is not letting Russians cross the border.
It's an age old tactic they use. Conquer territories, populate them with Russians, "leave", and then claim to "save" the Russians that are being "oppressed" bu re-occupying the territories by force.
They will always say it is their right or some bullshit like that. It never changes.
Here's a primer into Russian strategic culture (culture of lying), it explains a lot about the war:
(Turn on subtitles.)