I think you are right to wonder what Joe Biden is doing in Ukraine. But if we don't even know that, why should we think we know anything about what Putin is doing in Ukraine either?
All of the info about how many Russians are dead, how many Ukrainians are dead, who is bombing who, who is torturing who, in fact everything we hear about Ukraine is from other people believing the Western media narrative, even Ukrainians themselves, who have gangs of armed criminals and looters in the street, who they do not wish to offend, as well as maybe some well intentioned folk believing the propaganda.
We can't even guess at Putin's motives or evaluate Russian reports of what is going on, since we banned all their media, and all Russians from social media.