There only are 2 servers, one f2p - which is bleeding dry of population.
There is p2p, which already is dead - 14 players max.
If interested, go on RU p2p or f2p. I play on ru p2p with an addon that translates a whole ton of stuff, lots of players.
openworld pvp is not the core of the game but it does exist, especially in ru if you look for it. Don't expect archeage levels of openworld pvp tho.
Hope I helped!