Tip 1
During the VPN session, don't use Russian servers if anonymity is your priority because Roskomnadzor has high control on them.
Tip 2
Russia's firewall doesn't work well and compared to the Chinese firewall, it's very weak. Websites are blocked by ISPs and you can still access blocked websites by using the VPN that has servers in other countries.
The list of VPNs on this thread will help Russian people to get out of the information vacuum and check blocked news websites.