Unreal engine 5.0 software open - Sound at pc does not work anymore

Dear community,

I am new to Unreal engine.
Try to watch tutorials next to having unreal engine 5 open.

Unfortunately, 90% of the time the sound does not work at my pc anymore (chrome - youtube)

already tried to disable the sound mixer option at the windows settings (did not solve it), as well as I disabled all sound settings in the editor preferences (searched for sound and disabled everything I could find.

Would be really happy if one of you can help me to fix it!

Thank you in advance!