Tiling windows in Sequoia (MacOS 15)
Turning off 'snapping' Windows
The Sequoia Mac operating system has a new feature that causes the active window to snap to the full screen When you drag a window to the edge of the screen, macOS Sequoia suggests a tiled position by displaying a frame, and you release the window to drop it right into place. This way, you can quickly arrange two app windows side by side, or place four windows in corners to keep several apps in view at once. When a window has been dragged to tile on one side or the other, dragging it back immediately resizes it to its original width and height.
For those of us who find this behaviour annoying, it can be turned off by going to the System Settings, choosing the Desktop & Desk option and then turning off the Tile by dragging windows to screen edges
You may need to restart the computer for this to take effect.
For more on this new tiling feature, see this MacRumors article