I just don't use full screen mode much. On my 25" displays the only application that gets kept full screen is my IDE. I don't need a dedicated button that slowly animates the window to fullscreen if I accidentally click it.
Speculating here, but given that most people using a mac are looking at a 13" screen, it seems like this change was made to benefit them. And that's fair enough, but why can't there be a toggle in the system preferences to change it?
macOS has some preferences like this, but they all seem to be things grandfathered in from the old days. Future updates that change things like the green button or Mission Control don't get any preferences to tweak behaviour and it's so frustrating.