And the Russian Orthodox Church has been thoroughly corrupted by the Putin regime

Ofcourse, Serbian Orthodox Church was the main instrument by which Serbia took over Montenegro last year.

they’re are no better than the pro-Putin Night Wolves biker gang at this point

Serbian president uses football hooligans and Levijatanfor doing his dirty work/causing riots/violence.

They both serve at the pleasure of a guy that likes to exterminate political opponents

That's the saddest part on Serbia for me. Opposition is a bit better but it's still pretty bad. For example, no party in Serbia spoke against takeover of Montenegro, they all supported it. When it comes to tensions with neighbours, no relevant party supports recognition of Kosovo and most support denial of ICTY decisions on Srebrenica genocide and Operation Storm which causes further growth of tensions with Bosnia and Croatia. Quite similair to Navalny actually.