I just left my MacBook at Apple to replae the battery, after 1.5 years of using a monitor that also charges my laptop (through USB-C). I thought that would be a good thing for the battery longevity, but according to the Apple guy, the opposite is true (for MacBoks at least) and they see this problem a lot since so many people work at home because of Covid-19. Can we conclude that Apple batteries have a flawed design, as it wuld be better if the battery would be ‘decoupled’ when fully charged?