Notebook Audio

On July 27, I received my new 2020 HP Envy 15/6 Touchscreen x360 Laptop with AMD Ryzen 5 4500U processor.  The system also had Bang & Olufsen audio system, built in Mic array and HP wide vision video camera.  There are also keyboard function key buttons for speakers on/off, mic on/off and camera on/off.  After installing all Windows 10 64-bit updates (about 18), I discovered while using Zoom that the microphone and sound were not working.  Searches of the HP Support Community turned up similar problems, which seemed to be "driver related".  One resource recommended uninstalling the current graphic drivers and reinstalling the AMD Radeon Graphics driver.  Following instructions, I uninstalled the current drivers, deleted the software and reinstalled the AMD Radeon Graphics Drivers, tools and utilities.  Now the microphone and sound system worked, but began to fail intermittently, usually after 5-10 minutes of operation in a video/sound environment like Skype or Zoom (primary Zoom).  I removed the AMD Radeon Sound utilities, which caused some improvement, but failures continued.  More research of the HP community indicated, "The AMD High-Definition Graphics Driver and Realtek High Definition Audio driver are not the correct version and need to be updated manually."  Logical. I downloaded a BIOS update (recommended) and two driver updates (sp107252.exe and sp105839.exe).  I uninstalled the three Sound Video and Game Controllers drivers (AMD Audio Device, AMD High Definition Audio Device, and Realtek (R) Audio).  I did not delete the driver software however.  I then installed the two driver packages as was recommended.  After system restart, we tested the Audio /Video with Zoom.  After 5 minutes on Zoom, the sound and microphone failed, locking up or slowing down other parts of the system at the same time.   Eventually, the system was shutdown hard (holding down the On/Off button) and restarted.
We should note that there seem to be several "controlling" systems for the audio:  Bang & Olufsen Audio Control, the Realtek(R) Audio utility.  The AMD Radeon Graphics control system was removed. 
Since the drivers that were installed proved two things (1. the Mic and Audio systems were intact and COULD work, and 2. We currently have the wrong drivers installed, we raise two questions that imply a potential conflict, either in the drivers or the audio control systems
1) Which audio control systems are needed and is there a conflict if they are all installed?
2) Is there a definitive list of the CORRECT audio drivers for Mic and Speakers?  Have a specific set of drivers been proven to work on this system?  Are there any other conflicts?

With intermittent sound failures on both mic and speakers, it makes using this laptop for Zoom, Skype, Hangouts, or other video chat systems impossible. 

I have seen several posts, all very similar, regarding this problem.  If you have solved this issue, or you see that I have made an error in the process (like not deleting old driver software), please advise.  It would be most appreciated.