Can confirm that it's working terribly today, not sure if it's that roskomnadzor's fault or what, but even pictures in the main menu were barely loading and the connecting phase was longer than usual. I tried playing on 2 servers:
1) CzzFX3FG - had to leave because of terrible lag
2) OhiTP3FG - started out real bad (same as the previous one) but then got normal for a few minutes, after that became unplayable again, average latency - 6000-8000, 5 - 13 % package loss, the average would "improve" sometimes down to 200-300 but most of the time it was above 2000 ms. I couldn't even move around the map.
Not sure if it's important but I have deleted the BF V documents folder prior to launching the game today.
ISP is Beeline.
P.S. I had played BF 4 just a few minutes before starting BF V and it was working fine, I will try it again now.
UPD: Nope, Bf 4 isn't working as well. It was showing the servers list after a long wait all of which had bad ping. Oddly enough, while BF 4 was trying to connect, my whole computer was not able to perform network requests, they would all time out (e.g. ping to 8.8.8.8, nslookup)
I might try to use a VPN later to check if it makes any difference. Also, sometimes I feel like we need people from ISPs' side here to help with the troubleshooting.