Debian 11 XFCE 4: how to tile windows?

Context:

In 2015, yoshisherry said, on UNIX Stack Exchange:

In windows 7 using Windows Key + Left or Right arrow makes a window take up half the screen.

XFce 4 has the ability to tile either two windows side by side or 4 windows one in each of four corners (bottom left, bottom right, top left, top right).

In 2012, Michael Cheng said, on UNIX Stack Exchange:

In XFCE 4.10, you can enable an option that allows windows to tile automatically when dragged to the edges. The default is to tile to half the screen (half-top, half-bottom, half-left, or half-right).

Question:

In 2023, using xfcwm 4.16.1-1, I ask:

I never was able to do the most basic “left/right” tiling on XFCE on Debian 11.