Don't think this has been posted before -
FT reporting on what was Prigozhin’s motivation and thinking:
"The exact circumstances leading to the uprising remain unclear. One person close to the FSB said Russia’s security forces had spent the past several days preparing for some kind of assault, suggesting Prigozhin had learnt of the plan and had decided to go out all guns blazing. “This isn’t out of nowhere and it didn’t come as a surprise,” the person said.
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An important trigger for Prigozhin’s uprising appears to have been Putin’s decision to back the defence ministry’s attempts to bring Wagner to heel. After Russia captured Bakhmut last month, Wagner’s forces left the front lines, prompting Prigozhin to muse about whether they would return at all. Then, Putin supported defence minister Sergei Shoigu’s attempt to bring the jumble of militias fighting in Ukraine under the army’s control.
“He was pushed to this when he realised he was being driven into a corner, losing power and control over Wagner,” Pukhov said. “He didn’t just want to sink into obscurity.”
Prigozhin’s meteoric rise as a public figure appeared to have fostered a deep resentment at being told to take orders, as well as personal grievances against Shoigu and Valery Gerasimov, commander of Russia’s invasion force. Stanovaya said the war had brutalised Prigozhin, who had recorded several tirades where he posed in front of battlefield corpses and blamed Shoigu for their deaths, to the point where he lost sight of his place in Russia’s hierarchy.
“This is a man who spent several months looking at torn-off arms and legs and severed heads while at war. He doesn’t think about red lines, how the [Kremlin] thinks of him and so on,” she said. “He thinks he deserves privileges and that even Putin can’t do anything about it.”