> But macOS certainly doesn't come with that. I've got to manually drag the windows and edges and everything

Keep the green maximize button pressed in the app you want on the left in split screen. On the right you'll see a list of apps. Click on the one you want on the right.

This feature has been available for a while.

Thanks, but that's just split full-screen, which is limited to only 2 apps and also hides the menu bars (which I usually need when I'm working).

macOS definitely does not come with a general way to tile applications.

You’re not wrong but...it’s exactly what they show in the video.

I see.

No need for third-party tools on Windows (at least in Windows 10)