Apparently you can configure KWin (the WM for KDE) to act like a tiling WM. It’s very customizable. Also, you can replace KWin with a TWM, such as i3. I remember doing this a long time ago, can’t remember how, though.
I’m currently doing this with xfce replacing it’s window manager with i3. Sadly that doesn’t work on Wayland anymore because the concept of a window manager doesn’t exist anymore. Your DE is a compositor now.
Apparently you can configure KWin (the WM for KDE) to act like a tiling WM. It’s very customizable. Also, you can replace KWin with a TWM, such as i3. I remember doing this a long time ago, can’t remember how, though.
I’m currently doing this with xfce replacing it’s window manager with i3. Sadly that doesn’t work on Wayland anymore because the concept of a window manager doesn’t exist anymore. Your DE is a compositor now.