Russia's deadline for unfriendly countries to pay in rubles coming on Monday. More drama in the fiat world, i see a lot of people panicking about inflation, food shortages etc... But oddly i'm somehow at peace, wondering why that might be

Not going to happen, imho.
They were saying that they would pay bonds in rubles too, then paid in $ and euro.
I am not sure why their contracts stipulated ONLY $ and euros, apparently, but they are valid contract nevertheless.
You can't just asked to be paid in rubles when the contract says: euros (for example).
There might be willing intermediaries, though (for the low low 5% or something).