Mac OS?

Since the beginning of time, it's always been Apple menu, App menu, File, Edit, View, app specific menus, Help.

The order is mandatory.

And dialogs have the buttons in a specific order too.

And shortcuts are almost always the same - no guessing what Command-W will do in this app but not another.

App developers have to go some way to circumvent the OS.

Just saying. Apple got it pretty much right back in the 80s. Oddly IBM did too in OS/2 before the horror of Windows and Linux UIs. I have decades of muscle memory on Macs now that is very hard to overcome. I've tried various flavours of Linux UI and always get so pissed off with the inconsistencies.