I also live in Russia, and in my experience certain VPNs just get blocked by the ISP. Like, I just can’t connect to certain VPNs, the connection either gets stuck in an infinine loop or fails with an error. But some other VPNs still work without any problems.
Plus, since the beginning of this month, it’s prohibited to promote/advertise “means to avoid blocked internet resources”, i.e. proxies/VPNs/etc, so it can be called “partially restricted”
Yep, near Saratov, around 700km south-east from Moscow.