VPN Naoborot is a service created for Russians living abroad and they offer you service in Poland, Lithuania, Latvia, Estonia, Germany, Georgia, Kazakhstan, Armenia, Turkey, Serbia, Montenegro.
Regarding BitDefender on their website they say the following:
We want to provide our VPN service to everyone. Sadly, in some areas, the use of VPNs is illegal, banned, or blocked. For your protection, we’ve limited Bitdefender VPN in these 11 countries where using VPNs can get you in trouble: Belarus, China, Iran, Iraq, North Korea, Oman, Russia, Turkey, Turkmenistan, Uganda, United Arab Emirates
https://www.bitdefender.com/consumer/support/answer/8249/
Have a look at this article about VPN in Russia:
https://russiable.com/vpn-russia/