Al three work fine for me (also in Sweden). Perhaps different ISPs are dealing with this differently.
That's scary. Perhaps they only block if you try to access the sites regularly?? I wouldn't think my ISP matters (Telia, which one you're on?) but that's possible too.
Did some more tests and seems to be Telia doing the blocking at the ISP level. When I'm connected to the eduroam wifi network (I'm at a university) then I can get to all those sites. When I turn off wifi and use mobile data, via Telia, then they are blocked. If I use mobile data plus a VPN with the location set to Sweden, I can access the sites again. I have Tele2 as my ISP at home, will be interesting to see if that works or not.
Try one of these (none accessible to me in Sweden):
* https://sputnikglobe.com
* https://sputnik.by
* https://rt.com/
My wife is Belarussian and was upset she couldn't read her news, that's how I know they banned many websites. They didn't ban the "opposition" websites run from outside Russia/Belarus though :).