Apple's battery management algorithms are inscrutable, so I have no idea whether what you describe is correct or not. For now review About battery health management in Mac notebooks - Apple Support. There isn't much to review though, for no other reason than the fact Apple can and does change what they do at any time.
What cannot be changed though is the chemical nature of lithium-ion batteries, so to maximize their longevity Apple developed their so-called "intelligent" means of doing what users would do under ideal circumstances. Understandably, they don't want us to concern ourselves with such minutia, which people have become inured to doing over years of using battery-powered things.
It's been my experience that people who don't concern themselves with their Mac or iPhone batteries typically enjoy the most longevity from them, whereas they don't seem to last as long among those who tend to obsess about them. There must be some kind of scientific reason for that, but it's not an exaggeration.
Dismissing concerns by saying "don't worry about it" just tends to annoy people who insist upon worrying about things, so I won't tell you that. It really is what we are supposed to do though. It's a fundamental Apple design principle that they have maintained for decades.
By all means contact Apple though, because it's difficult for anyone on this site to draw any conclusions from your description.
