It’s like Putin is absolutely determined to play the role of the dirty villain in a C-grade spy movie. I mean, they’re not being very subtle, are they. “Oooh oh Ukraine has been developing chemical weapons!” - right, sure. I can already see Putin’s resident Renfield pouring poison into the delegates’ water while going “mwahahaha”.
That being said, I think at this point they’re basically just stalling for time. Ukraine is running out of time while Russia would definitely benefit from a long conflict - gives them time to get their act together, consolidate their armed forces from around various regions, to continue shelling Kyiv and other cities, strengthen their hold on the territories currently under their command, etc.
(Meanwhile, in Hungary… Our Dear Leader still refuses to call Putin an aggressor, but he sure as hell can condescend to Zelensky and lie blatantly about the situation in Hungary; while his propaganda parrots are now saying that Zelensky is trying to meddle in the upcoming Hungarian elections. Because, y’know. The leader of a country currently fighting for its survival has no better things to do.)