I do believe that WM feature was available long before Windows 7... I recall similar options in many WMs as well as apps like Gimp, called sticky edges, edge attraction, snap-to-borders, and so forth. It seems like a fairly apparent idea to assist window placement, and i’d be surprised if it hasn’t been around in some form since the 80s.

Linux is highly extensible and modular, so it’s hard to say what it provides ‘out of the box’, even a given distro. For almost any distro, it’s very simple to start using a different WM (literally 3 steps).

I suppose it’s true that for the majority of users, what the defaults are is more important than an option merely being available as most people will never even read the settings menus.