Headset (jack) and loudspeaker (laptop) run at the same time?

The problem is I want the sound to only run through the headset so as not to disturb others.

Already tried:

Download software for the headset:

Problem: no matching found (by connecting USB from the device, nothing happens is not even recognized)

Control Panel - Sound - Deactivate Speakers:
New problem headset is also off.

Equipment:
Laptop: GL63 8SC
https://www.notebooksbilliger.de/...ook+465368

Headset: OCDAY G2000

https://www.amazon.de/...076P5R9W6/

1 … You have had the problem for a long time - and you have not been able to solve it…

If you connect your headset via USB, the speaker will of course also continue to run. Only when connected via (jack) is the internal LS interrupted and muted because this interruption disconnects the internal.

And a headset should always have a jack. If it is too big or too small - there are adapter plugs.

No. The question is not difficult.

It is just incomprehensible why your notebook does not switch off the internal speakers when you plug in headphones.

Because normally every notebook does this automatically.

Please read correctly.
It doesn't work at all via USB (not detection)
That's why I used the jack on my laptop, but here the sound runs through the headset and the loudspeakers at the same time. As an output device, both are recognized as the same output device.

Yes, usually. That's why I'm so interested in why this Noteboke with this headset is an exception.

I suspect the latch does not trigger the mechanical "separation". Try a different handle.

I've already tried a different cable on the same headset.
Same effect.
I also noticed that when I mute the laptop and all audio output devices are deactivated, the headset continues to run with sound.

Sound:

Loudspeaker Nahimic mirroring device is deactivated

Speakers Realtek (R) Audio (sound runs through the headset and speakers or, if deactivated, only through the headset)

Realtek Digital Output Realtek (R) Audio Not connected