Connect optical digital cable to monitor for sound?

There would be a way that I could connect a digital optical cable from the Ps4 to a jukebox. However, I would prefer to connect the jukebox to my monitor (BenQ GL2480), but I don't know whether there's also a connection for the cable on the monitor.

The picture shows the connection options of the monitor. Now I wonder if the digital cable fits into the headset socket (far right)

No it does not.

Monitors never actually have a sound output for an optical cable, I only see headphones / aux (3.5mm jack) on the far right.

From the left DVI (digital input), VGA (analog input), 3.5mm jack (output for KH). An optical connector is usually mostly square. And as has already been written… I have also never come across a monitor that has an optical input. Even with TV's this is rather unusual now.