Eh...They're all lunatics, I'm not sure it factors much into the decision to screw over Prigozhin, it's just typical Russian backstabbing. Medvedev is absolutely fucking insane and he's Deputy Chairman of the Security Council. Prigozhin is literally nicknamed "Putin's Chef" and they've been close allies for years now, Prigozhin/Wagner are Putin's little secret who do the dirty work for him that Russian MoD can't be caught doing.
Putin no doubt already knows how insane Prigozhin is but he has worked with him for years now, man literally had Nazi tattoos, Lmao. On the other side there is Shoigu who has been a trusted advisor to Putin for most his Presidency, Shoigu who has survived every single Putin purge so there must be something in Shoigu that Putin sees and likes...I can't say what cause the Russian army looks fucking pathetic.
Sometimes I wonder if it's just typical Putin shit of pitting two people against each other and seeing who comes out the winner, or maybe it's just Shoigu vs Prigozhin and Putin isn't involved in it, Prigozhin is always very careful to not directly call out Putin but the Russian MoD (Shoigu/Gerasimov) and Putin somehow avoids all the blame (fear? friendship? Idk).
I think Shoigu doesn't want Prigozhin doing well because he doesn't want to share the success with a private mercenary company, kind of embarrassing for the Russian MoD. It would then elevate Prigozhin in standing and decrease Shoigu's. It's all about power, Imho. They're all insane but none of them want to lose their power.
Another possibility is that it's not actual intentional and simply that Russia does not have the supplies or can't afford to supply Wagner or maybe Wagner is being supplied but Prigozhin can see his loss coming and so he's spinning it so he doesn't get any of the blame when Russia inevitably collapses and puts all the blame on Shoigu/Gerasimov.
Idk! But I am thankful because whatever the reason, if they are actually fighting each other or can't supply Wagner, it's helping Ukraine!
Will say though as it currently stands, Putin looking a bit like Ted Cruz to Prigozhin's Donald Trump, how much can this man shit talk the Russian MoD before eating a bullet? Does Putin even care? People in the past have been killed for daring to criticise Russia. I'm wondering how Prigozhin isn't dead yet, Lol.
And I'll say again, I don't think Prigozhin has any chance at Presidency of Russia and I've had Russians tell me that too. Way I see it, Prigozhin doesn't have the support of the Russian MoD, Gerasimov, Shoigu, Medvedev, FSB or even Russian Local Leaders. His army isn't loyal to him, they're loyal to money.