What about the public, whose side are they mostly on?
Wagner had an election and the population supports the pro Russian Wagner group.
Between Twitter feed (from Rostiv and Moscow), and German news....I’d say the majority of people around Rostov (fairly near the Ukraine border) are either neutral or pro-Wagner. But I’d also suggest most everyone interviewed off the streets are a bit shocked (weren’t expecting this).
One other aspect...two months ago...Wagner folks were whining that they weren’t being given ammo/rockets. Right about this time, Russian military required Wagner members to swear an oath. It appears ammo/rockets were being distributed and stored away....waiting for this day of the ‘coup’.