Microphone, Audio Jack Detection Issues with Latest Driver - Inspiron 13 7370

On Friday, Windows Update helpfully pushed the latest Realtek Audio driver to my Inspiron 13 7370.  It was version 6.0.9228.1.

With this version installed, my laptop's built-in microphone volume was so low that it was nearly unusable.  I double checked the level settings (100) and boost (from +0 db to +30 db, nothing helped).

Next, I downloaded the driver from Dell's site - https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=6r00g&oscode=wt64a&productcode=inspiron-13-7370-laptop

This uninstalled the driver, asked for a reboot, reinstalled the driver, and asked for a reboot once again.  Still, the mic was too quiet.  Next, I manually installed Waves MaxxAudio from https://www.microsoft.com/en-us/p/waves-maxxaudio-pro-for-dell/9nb9srtl2kpt?rtc=1&activetab=pivot:overviewtab .

After rebooting, the built-in mic worked fine, like it did before, and the levels were good.  However, I was unable to get my external speakers or wired headset to work.  Not only did the popup not appear when plugging things into the jack in the laptop, audio was simply never delivered to the jack (or taken in from the headset mic).  I double checked that the checkbox to enable the prompt on insertion popup was enabled (within MaxxAudio, under the Playback tab, under the Advanced options).

I tried restarting, then uninstalling Waves MaxxAudio.  Still, I couldn't get output on the external speakers or headset (nor input from the headset mic).  Reinstalling Waves MaxxAudio after that didn't help, either.

Is this yet another bad Realtek driver version?  Is anyone else having these sorts of issues?

I'd roll back the driver, but of course, Windows acts like there was no previous driver to roll back to, even though I can see in the hardware events tab that the previous driver was installed last November.

Thanks