The closest I’ve come to what you’re describing is correcting a strength imbalance between my left & right arms.
I switched to using unilateral work almost exclusively, which corrected the imbalance within several months.
If your symmetry imbalance is accompanied by a corresponding strength imbalance and you do not currently employ much unilateral work in your training, then doing so may help balance you out some.
However, it sounds as though you currently do plenty of unilateral movements.
Have you always done this, or is this practice more recent?
If you’ve only just started, then I recommend giving it some time to gauge its effectiveness.
Also, more/extra work for the lagging side may seem like a good idea, but at the same time, you don’t want to overwork the muscle to the point it is not fully recovering between workouts.
Rather than simply devoting extra volume to the lagging side, you may consider reducing the amount of work for the entire chest TEMPORARILY, while using a more of a “full load” on only the affected side.
If you want, even try using a little of both approaches for a while.