here is the thing.
if putin wanted to, he could stop the citizen serving ISP's, meaning even if you have a VPN its useless if your router cant even connect to your ISP
whilst still allowing a public sector ISP to service the inner government routers
its not about IP banning certain sites. its about turning off ISP's that citizens subscribe to and have a landline/cellular network connection to that can be switched off.
i doubt putin would stretch that far to P!55 off all his citizens, but then again other countries have(kazahkstan fuel riots). so i wouldnt put it past him
That would mean a million more people on welfare, at least!
All the freelancers like journalists, coders, translators, all youtubers, streamers, content creators of various types, moderators, game designers, small online stores, everything would go to shit. That would mean serious drop in taxes and gigantic unemployment and migration. Sure, he can do it, but that's going to be the last nail in his coffin.