World of AC blackflag Resynced

I’m thinking about buying AC Black Flag Resynced, but I’m mainly interested in games with highly immersive and interactive worlds. I’m not expecting it to beat rdr2 or kcd2, but I’d like to know how close it gets. I’m especially interested in world simulation, NPC behavior, exploration, and that feeling of living in the world rather than just completing missions. So how would rank and measure this world compared to others?