Does Russian Economic Official Anatoly Chubais Indicate a Move Toward Soviet Style Government Reforms?

Key Economic Official of climate and sustainable development Anatoly Chubais resigned his post and left country. Anatoly was a special envoy that lead privatization efforts under Putin and Boris Yeltzin (People raised during and after the Cold War should remember some of these names.)  It could be something as simple as a major disagreement or it could be an ideological shift for the country.

You can gain some background on the envoy in Russian special envoy resigns over Ukraine invasion, reportedly flees country. Rumor has it according to Russia's Chubais resigns as Putin's special representative due to war - sources . 

A couple of options:

1.) Personal grievance based on arguments, prior competitive and ideological positions. 

2.) Shift in Russian economic stance indicating pro Soviet economic-sociological models.

3.) Putin feeling threatened by Oligarchs and and how they obtained their money.

4.) Purging government of varying opinions (Likely to limit new ideas as well as consolidate control over govt. resources).

5.) Additional options...(there are always many unknowns).

In many ways it looks a little like Russia is turning inward and back to his prior governance style. Time will tell......

It should be noted there are never any facts with projections and options...there are just possible avenues.