I have my doubts on that. I think Sebastian Sas may be right in his assessment that Z may be the leader that matters the least amoung a bevy of other European leaders, but he still matters.
I haven't either, to be honest. As I said, I think that Z matters, but not nearly as much as other European leaders. I think the country that -most- matters other than Russia is the U.S. and it looks like Trump is finally working on a deal with Russia- my hope is that nuclear escalation becomes a thing of the past and this war will end with Ukraine either getting to the diplomatic table early while it still has troops or getting there once its forces are almost completely exhausted.