Since there's a bunch of dipshits doing the "omg Russia #nuclear movements" BS again, my handy dandy guide on who's reliable regarding all such movements and their significance:

1) Principals in the nuclear chain of command. i.e: the President, Secretary of Defense, National Security Advisor, or head of nuclear forces, or their official spokesperson; and even then ONLY if they deliver that message from the podium as an explicit statement on that subject

Otherwise, in general, safe to ignore it

It's a weirdly constrained domain where the collection of people who are able to authoritatively signal in this domain is extremely small and with direct command authority relevant to the domain, and even then only after jumping through various hoops. And that's not an accident. It's precisely so that you can safely ignore all the other people and avoid miscommunications.

Been that way for a looooooong time and predates that new fangled internet fad by a while.

"The nuclear" is a bunch of things, but "subtle" and "a good thing to get very worried about because of a social media post I saw online" are not, in general, two of them.

To be explicit for y'all:

People I don't worry about when they talk about nuclear forces: Medvedev, Prigozhin, Kadyrov; any R or US TV host; anyone in Congress or the Duma; anyone online; anyone in a non-nuclear country, including Zelensky, Lukashenko, Scholz, etc.

People I would start hoarding iodine pills if they started holding urgent press conferences about nuclear forces*: (T-1) Putin, Biden, (T-2) Patrushev, Sullivan, Gerasimov, Austin

(*to be clear, we're not *remotely* close to that)

@Pwnallthethings that said, iodine pills are like $20... When it gets close they'll be $2000, won't contain any iodine, and will take 6 months to arrive...
@Billiam @Pwnallthethings but will strangely still have 5 ***** on Amazon