Balanced was 3700x /RTX 2080 Super on 34inch ultrawide. That was my previous rig and never once i was in here complaining about stutters due to imbalance.
There is an article floating around in one of these threads that lays out the specs for the resolutions and graphics levels. My spec fell right into it perfectly for the game settings and resolutions i was running.
The moment i upgraded the GPU to 6800xt i could tell the cpu wasn’t up to task. I purchased a 5900x and all was good again.
With the 3070 i would recommend a 5600x . That would bring it into balance with the appropriate cpu to get the most out of the GPU.