It's a sad state of affairs, but since the invasion started my only source of "news" related to the war is a few, and I a said a FEW, Youtube channels.
I'm brazilian and one channel I recommend is Fernando Ulrich's channel. He interviewed (in english) a lot people (ukrainians, russians), commented on the geopolitical causes for the war a month before it started for real etc.
Through his channel I found the lectures by John J Mearsheimer, and that's the only reason I can say that I "understand" what the hell is happening over there.
It's a real shame that a financial advice channel, from a 3rd world country, is the last bastion of thrust I can find in order to get informed about the most important geopolitical event of the last decade. The mainstream media/tech oligopoly are a disgrace to mankind.