Trying to catch up to most of this, because I've had no time to keep up with this latest kerfuffle until recently...
And the lot of them are just as cunning, powerful, dangerous yet easily thwarted by brave KGB operatives and heroic MiG-29 pilots. Poor Belarus and poor Russia, innocent victims of the West's constant machinations.
Belorussian propaganda seems to be somewhat different: that KGB had just about nothing to do with his arrest, and probably wouldn't have even been aware of his presence on the flight if Protasevich wasn't burned/betrayed by his comrades, probably his Western handlers. ... Now, there's a very obvious advantage of feeding
Protasevich that story, but painting the Protasevich as getting into KGB's lap as something of a random happenstance on state TV is somewhat stranger, especially because it is so blatantly bullshit.
Well, I suppose Belarus is hoping for people from the same hang-outs to be distrustful of Western agencies by attempting to paint them as burning their own, much more than they want positive propaganda of KGB competence or bravery (it's actually curious how incompetent KGB is painted in the state TV version of events, if one thinks about it as hypothetically true). So taking the underlying message at face value, nobody involved is especially cunning or dangerous, just
perfidious. Russian media seems to have attempted if not particularly successful injections of the same general idea: Protasevich's arrest might have been itself a Western plot for... reasons? I dunno; maybe they're trying to half-heartedly distract from the fact that the most immediate
cui bono here is Russia.
Perhaps the only way the Belorussian propaganda story that this wasn't a KGB operation from the start could have even an iota of believability is if the fake bomb threat to divert the plane was actually initiated by Russian security forces instead. But there's basically no way KGB didn't know he was there regardless; the only slight window of uncertainty is how much KGB wanted to have him vs how much GRU/FSB wanted KGB to have him.
But let's be clear here: that Nexta is funded by the Polish government and has Polish security contacts would be 1+1=2 level deduction for any organisation of political significance operating out of the Belarus House in Warsaw, and also freely admitted by Putilo in interviews from basically the start of this saga. That's also why there's a university in Vilnius the sole purpose of which is to crap out pro-Western Belorussian influencers, thus politically protected from losing accreditation despite repeatedly failing the standards of Lithuania's Centre for Quality Asseessment in Higher Education. (Neither are really
EU projects, however.)