Question :
Is there a way to quickly arrange the active windows of various apps on my macOS screen ?


Answer :
Yes, since macOS 15 Sequoia you can do this with the Window tiling option.

The main ways to use Window Tiling are :
1. using the on-screen buttons
2. using keyboard shortcuts

-1-
Window Tiling buttons
The Window Tiling buttons appear in a popup-screen when you hover the cursor over the GREEN button that’s top-left in every window, be it a Finder-window, an App-window, a Settings-window or any other on-screen window.

NOTE : there’s an extra option (almost hidden) here : the “Move to iPad”-button that enables you to move the active window to your iPad if it’s in the direct vicinity of your Mac (and connect to the same iCloud account)


-2-
Keyboard shortcuts
By pressing various key-combos on your keyboard you can also move the active window(s) – the primary 1, 2 or even 3 windows – to the desired half or quarter of the screen …and still leave the top menu bar and The Dock visible.
These are the main keyboard shortcuts for Windows Tiling :

[fn]+[CTRL]+[F] = FILL the entire screen with the active window
[fn]+[CTRL]+[C] = CENTER the active window in the middle of the screen
[fn]+[CTRL]+[R] = RESTORE to the previous window location(s)

These are the keyboard shortcuts for filling only one half of the screen :

[fn]+[CTLR]+[RIGHT] = fill the RIGHT half of the screen with the active window
[fn]+[CTLR]+[LEFT] = fill the LEFT half of the screen with the active window
[fn]+[CTLR]+[UP] = fill the UPPER half of the screen with the active window
[fn]+[CTLR]+[DOWN] = fill the LOWER half of the screen with the active window

These are the keyboard shortcuts for filling both halves of the screen :

[fn]+[CTRL]+[SHIFT]+[RIGHT] = fill the RIGHT half of the screen with the active window AND the left half with the secondary window
[fn]+[CTRL]+[SHIFT]+[LEFT] = fill the LEFT half of the screen with the active window AND the right half with the secondary window
[fn]+[CTRL]+[SHIFT]+[UP] = fill the UPPER half of the screen with the active window AND the lower half with the secondary window
[fn]+[CTRL]+[SHIFT]+[DOWN] = fill the LOWER half of the screen with the active window AND the upper half with the secondary window

And these are the keyboard shortcuts for filling one half and two quarters of the screen :

[fn]+[CTRL]+[ALT]+[SHIFT] +[RIGHT] = fill the RIGHT half of the screen with the active window, the left top quarter with the secondary window AND the left bottom quarter with the tertiary window
[fn]+[CTRL]+[ALT]+[SHIFT] +[LEFT] = fill the LEFT half of the screen with the active window, the right top quarter with the secondary window AND the right bottom quarter with the tertiary window
[fn]+[CTRL]+[ALT]+[SHIFT] +[UP] = fill the UPPER half of the screen with the active window, the left bottom quarter with the secondary window AND the right bottom quarter with the tertiary window
[fn]+[CTRL]+[ALT]+[SHIFT] +[DOWN] = fill the LOWER half of the screen with the active window, the left top quarter with the secondary window AND the right top quarter with the tertiary window

That’s it !

enjoy 😉