IIRC while there are no that many official macbook models, there are actually multiple subtle variations released every year - Linux distros found that as users

IIRC while there are no that many official macbook models, there are actually multiple subtle variations released every year - Linux distros found that as users reported a distro working on MacBook 201x but not on a seemingly similar MacBook 201x (same model year). Why they do that is unclear to me (component EOL/cheaper components beclming available ?) but they paper it over in their firmware and OS code, so custo ers using MacOS don't notice. Well, until one of these sub models gets brucked.