No, but it's Putin at by far his weakest. You won't ever get a better opportunity.
That's assuming there's a sufficiently organized opposition (other than Wagner) that can put something meaningful in motion now. Putin had made very sure that can't happen.
This is obviously good for Ukraine, but I don't see any advantage for ordinary Russians. If Prigozhin wins, he'll probably be a worse dictator than Putin; if Putin wins, his paranoia will probably go up another notch; and either way there might be a good bit of destruction before there is an outcome.
I mean, I'm as happy as anyone that Putin (as an individual) is being out in a situation like this, but I don't see a way yet in which this leads to improvements for Russia as a country or for the Russian people.