Use KDE 5.27 Tiling manager and "tile" all windows at the best positon without having to press the shift key. It will not split or add areas on the fly, the window is only resized to an existing area that you can define with Meta+T using KDE's tiling editor.

Single windows are maximized automatically.

This extension is unstable.

Demo:

Resources :

• KWin documentation https://develop.kde.org/docs/plasma/kwin/api/
• Plasma's MR that adds Tiling support https://invent.kde.org/plasma/kwin/-/merge_requests/2560/diffs
• KDE's Scripting support https://invent.kde.org/plasma/kwin/-/blame/master/src/scripting/scripting.cpp#L210

Inspired by :

• https://github.com/esjeon/krohnkite
• https://github.com/Bismuth-Forge/bismuth
• https://github.com/zeroxoneafour/polonium

How to install :

1. Download a release from https://github.com/ragusa87/kde-tiling-on-drag/releases (file kde-tiling-on-drag.kwinscript).
2. Open Plasma setting and search for "KWin" (Windows Management -> KWin Script).
3. Click on "Install from file" and select the kde-tiling-on-drag.kwinscript file.
4. Enable this extension (kde-tiling-on-drag).
5. Click on Apply.

How to use it :

1. Make sure your enabled the tiling editor in the "Desktop effect" settings.
2. Press "Meta+T" to open the tiling Editor.
3. Setup a layout.
4. Drag or open any window, it will be tiled automatically.

How to compile and install from source :

1. Install requirements (makefile, 7z, npm, plasmapkg2 or plasma-framework)
2. Edit the source file
3. Run make reload to build the package and reload it in Plasma

Limitations :

• It's buggy
• You need to set at least a layout with 2 areas.
• There is no feature such as "switch layout", etc.
• If you need more, stick to a more advanced script. This one is only an MVP.
• You can of course submit MR or fork.