> I never knew what windows called it before, so there was no way to get rid of it in settings.
The settings pages aren't that big. You could read through it all in 5 minutes. Did you look? I mean sometimes things are annoying and you just can't be bothered to dig around to find the thing that turns it off, but at least in this case, it's easy:
Out of curiosity, I just opened Windows 10 Settings. I see sixteen top level options. I opened the first one and it had 16 submenus, the first of which is two pages tall and has 8 additional settings links from it. Of course, Control Panel is also a place it could be hiding, and it's even bigger.
So, no. One does not simply click on every single thing in settings hoping to find the annoying thing that Windows is doing today that you don't have a name for.
Typing "Snap Window" into search narrows it down to three, which makes it possible to accomplish.
The settings pages aren't that big. You could read through it all in 5 minutes. Did you look? I mean sometimes things are annoying and you just can't be bothered to dig around to find the thing that turns it off, but at least in this case, it's easy:
Settings > System > Multitasking > Snap windows