It looks as if Prigozhin is betting on a big event in the Kremlin. See https://freerepublic.com/focus/news/4042550/posts?page=4387#4387
29 May: Russians Try to Destroy PATRIOTS with ROCKETS... DOESN’T WORK WELL…
Day 460: Today Russian forces conducted a massive drone and missile strike.
https://www.youtube.com/watch?v=HIpdwx7Vcz0