This would require reading what Putin wrote and commenting on it. This would require listening to his speeches in Russia. This would require close listening to Russian ideology and mythology disseminated in Russia itself and commenting on it. This would required reading Russian and Easter European politics and history - at least recent one.

It would require watching which of his statements are shifting, which are ignored the moment they are not useful, which are staying and which are supported by his actions. I dont see them ever mentioning Putins historical theories, his theories about Ukraine statehood, about Stalin.

And somehow, that concern exists only when Russia is trying to excuse invasion by bioweapons labs. Somehow, magically, this concern did not existed before, nor in other countries and stopped existing as it turned out not many people are buying it as excuse for invasion. There was no "maybe the war did not started due to that" consideration either.

This was not concern about "provocation" or concern about Putin being good-faith afraid of new covid from Ukraine. This was muddying waters, trying to build up new WMD-like narrative, because libs are at Ukrainien side.