Baseball Prospectus - Is There an Adjustment for Quality of Competition?

i wonder whether we get to the point where there is some sort of statistical adjustment that you might make for quality of competition. Neither baseball reference nor fan grafhs accounts for the quality of opposing pitcers, let's say, when assessing a hitter's performance. If you hit a home run off an ace, it counts just as much toward those wars as it does if you hit one off josh van meter. So i do wonder like maybe it's just still not a prominent enough part of the game to go to these lengths and actually make some sort of adjustment. I'm not against the idea of having some sort of quality of competition adjustment. But shard to know where to stop