Micro not working with Lenovo laptops

Hello, our users use Lenovo laptops, and many of then have problems with the microphone, in the sense that other participants do not hear them or hear a very disturbed voice.

PC's are updated to las Windows 11 version and the micro with other platforms, like Teams, work.

We tried all common solutions, update driver, remove other software possibly interfering with micro but nothing changed.

Did anyone had same problem?

Thanks.

GinoDS