You say the US re Ukraine. It's actually Western European powers, which have dramatically more influence over the situation in Ukraine - they always have, and they always will - than the US does.
It's hilarious that people think the US controls every aspect of planet Earth, such that it can just point its finger at things and make them the way it wants them to be. The bipolar response to US capabilities is the amusing part, the US is either a god toppling governments at will or entirely incompetent, depending on whatever narrative the anti-US contingent needs to push.
I still remember the leaked Nuland's call saying "F* the EU" implying that US was the main change agent and the other caller expressing views that EU was too weak to do anything and they had to act. It looks like Russia has learned from that, manufactured consent to get rid of Lukashenko utilizing his weaknesses and expected actions (i.e. unable to resist corrupting the elections, suppressing protests by force) and had trained people in the background ready to take over. I guess Russia decided to preempt any potential US/EU action by simply replaying the same scenario they saw in Ukraine, Georgia etc. with the ability to steer its outcome at a time that is favorable to them (COVID-19, economy down).
You haven't looked deep into Ukrainian situation, do you? Western European countries have continuously expressed their frustration at the fact that Ukraine does not follow the Minsk agreements to no avail. They would like for mutual sanctions between them and Russia to be gone as soon as possible and Ukrainian unwillingness to follow Minsk agreements silently supported by US (and not so silently via supplies of lethal military equipment) makes it harder (since the civil war is still ongoing).
Meanwhile Derkach tapes have shown that Ukraine wasn't far from a puppet state and for current government just a little warning from US was enough to stop any investigations into potential Poroshenko treason just because it may influence US elections. Just think about it! Also US has a significant influence over WMF, which openly dictates how Ukraine should behave in certain key areas.
It's hilarious that people think the US controls every aspect of planet Earth, such that it can just point its finger at things and make them the way it wants them to be. The bipolar response to US capabilities is the amusing part, the US is either a god toppling governments at will or entirely incompetent, depending on whatever narrative the anti-US contingent needs to push.