Yes, there's pro-Ukrainian propaganda out there. Every party in a war uses and issues propaganda to some extent.
Yes, Biden is (finally) supporting Ukraine -- at least verbally. Soros and others are jumping on the anti-Putin bandwagon because of course they are; they need to distract everyone from the fact they were working with him to attack anti-communists for years. Even a broken clock is right twice a day.
The timing of this was convenient for Biden because it takes the heat off him for a variety of issues. I suspect Putin felt the heat Biden was taking on those issues made the timing convenient for him.

The bottom line on this for me is that a neo-Stalinist is rampaging. People die every day but usually not because of deliberate action by a tyrant who thinks he can get away with literal murder. He should have been put in his place and boxed in when he pulled this crap with Georgia and Crimea but the Leftists in and out of our government didn't want to do that. He waited when Mr. Unpredictable was in office but launched his expansionism again once the Senile-in-Chief was in office and overwhelmed. If he's not stopped and put down this time, he'll keep escalating and that will cost us more in the end than doing something now. These kinds of thugs don't stop until they realize they're going to get hurt.