I am not going to post any links here, but a good place to find their narrative starting propagate is on far-right social networks. In some cases, there will be complete silence, like an event never happened. In others, all you need to do is track the accounts of foreign “reporters” or talking heads that still have access to those platforms.
And yeah, the teenaged edgelords will pick up the slack shortly after. It takes about a day or so for the conspiracy theories to propagate.
This particular incident is probably going to spawn “wHaT aBoUt dOnbASs?” type trolling, if I had to guess.