To be clear I think what people are saying is that you use your battery a lot so it is natural that the total capacity has decreased. It probably has little to do with HOW you charge and discharge your battery. The sheer amount that you use it is probably outside of the "average" that Apple is considering when they provide their battery health estimates.
Batteries are a consumable resource. Even if you use your battery perfectly it only has so many charge cycles in it. Not using the battery at all is bad because electrons do need to keep flowing but the more you use it the more you use up the finite resource that is your battery capacity. Plugging in more often will simply slow the rate at which you accumulate extra cycles which in your case will probably slow the degradation of your battery health.
Still I thank you for presenting this data point because if you can maintain somewhere around 90% battery health with what comes out to 481 cycles/year (if you continue as you are doing now) then my usage (which I thought was quite high) of ~124 cycles/year should be just fine
PS. I highly suspect that the battery capacity that you read in software is an estimate (based on the software's calibration of the battery). I don't think that seeing your battery health go up to 90% means that your battery actually got better (that is actually thermodynamically impossible). It just means the software calibration changed a bit. That is my understanding anyway.