@Ferarri77 Thanks for sharing this. I believe a bit of troubleshooting would set things straight.
So, if I understand what the problem was, your PC is not giving out sound right? Now, if I got it right, let's start from the bottom and ascend step by step.
First:
I noticed you said that the audio worked perfectly when you did Zoom meeting. I have a question and your answer to this question will help us to make further progress. Did you connected any headphone for you zoom meeting? If no, what did you used to listen during the zoom meeting and what did you used in giving feedback (I mean response during the meeting)?