Nice history lesson, but for all intents and purposes the Dock _is_ equivalent to the Start Menu, as both are the main ways to start or switch applications for most users.
The Apple menu has nothing to do with running applications in modern macOS versions.
The start menu is a single button, whereas the dock is a large number of icons. Corner aligning the dock would do no good, as any icon other than the one in the corner wouldn't be corner aligned either.
Regardless of how you see the function parity between the two, the corner alignment argument just doesn't hold here.
I wasn't talking about the apple menu, though it is more similar in function to the start menu than the doc is... However, start does a whole bunch of things, so it's not really the same. Nobody switches apps using the start menu (that's what the taskbar is for), but people will search for apps (and files) that aren't on their taskbar already. I don't think people do that with the apple menu, I don't even know if you can do either of those things there on modern MacOS (they were talking about older versions in the above comment). I believe people open the launchpad for apps not on their doc. It's been a while since I have used MacOS, so please correct me if I am wrong.
> the Dock _is_ equivalent to the Start Menu
This is what I was referencing in my previous comment. This is not accurate. They are not even similar. The doc, however, is very similar to the taskbar. The doc and taskbar are used almost exactly the same way by users. I'd say they are effectively equivalent. That's all my first comment was trying to say.
The start button is used for many of the things the apple menu can do, but also for searching for things, from apps to files. I am not sure you can easily compare it to one thing on MacOS, as it seems like those functions are put into multiple different places, many of which are discrete apps _on_ the doc... which may have been what you meant. The above user was saying the Apple menu _was_ the same as the start button is now, but acknowledged that those functions have been broken apart since that time.
The Apple menu has nothing to do with running applications in modern macOS versions.