It isn't changing. I may be projecting, but this grave mood has been dominant since the first day of the war.

On the contrary, when Puting announced the recognition of two Donbass republics as independent countries a few days before the war, there was a round of cheer and optimism -- because that would mean that the cross-border shellings in Donbass will finally stop. But that cheer has completely evaporated the morning the invasion started.

(Take this with a grain of salt -- this is based on my personal observations of my relatively narrow social circle, plus I may be projecting).