Unfortunately, I think things are just getting started.
Why is Belarus performing provocations on the Polish border? Seems to me that Lukashenko is either doing it for himself, or for Putin. I can't see why he'd be doing it for himself. He might see Poland, flawed but still something of a democracy, as a threat to inspire those seeking democracy in Belarus.
But it seems to me to be more likely that he's doing it for Putin. (This also might involve Wagner going to Belarus, not to escape Russia after the coup attempt, but in order to do a job for Russia.) But what's the point? Belarus isn't going to conquer Poland. Russia's not going to conquer the Baltics. So what's going on?
If this is all a master plan, I think it's most likely that Putin is trying to create a war (or at least a real threat of war) with NATO, to give him an excuse to call for a mass mobilization in Russia. This in turn will give him enough force to at least keep what he has in Ukraine. (He's gambling - almost certainly correctly - that NATO has no stomach for anything beyond defending themselves. Think of the "Phony War" phase of the western front in WWII.)
If I'm right, this is an extremely dangerous game that Putin is playing. Wagner could get out of hand (it already did once). The war could escalate. The Russian population could get fed up. The Russian elites could get fed up.
But Putin may feel that he has no choice, because otherwise he would lose power, and because he may not survive a fall from power.
(Wow, this has gone really far afield from a discussion of a promising cancer drug!)
Plus creating chaos in general seems part of the goal. Russia was losing (well, lost) hegemony in Ukraine post 2014, but damned if it's going to permit its success outside of of Russian control. Absolutely laying waste to Ukraine will not bring Ukraine back under Russian influence and has turned even formerly pro-Russian people in places like Odessa into Ukrainian nationalists. But this matters little to them, because Putin/Lavrov have already clearly bargained on losing them. ... So instead, create chaos not only in Ukraine but across all of Europe, making an example out of them and sewing destruction in order to prevent further splintering of Russian influence.
And it plays well to the domestic audience, and to the blindly "stick it to the West" types. Bitter ethnic animosity between Russians and Poles works for jingoistic demagogues on both sides of the border. Talking shit about Poland keeps Putin's domestic support strong. And (basically explicitly fascist) Wagner's philosophy of might-makes-right and chaos-making clearly plays well to the audience at home, so two birds one stone, sticking Wagner next to Poland to rattle some sabres.
The question is whether ultimately NATO falls for Lukashenko and Putin's stupid trap, and the next time a provocation like this happens, a helicopter or two is obliterated or a ship in the Black Sea is sunk (again), and then the hyper-nationalist audience at home can froth at the mouth some more and Putin's ratings go even higher.
But I think NATO leaders are smart enough to see the provocations for what they are.