One final comment.
Thanks to @thx-1138, I have found out that PulseAudio 12 has supposedly fixed all these issues that I believe will render the UCM files obsolete.
However, I have no idea if Mint users will see that version of PulseAudio before Mint 20.
Ubuntu 18.04 (on which Mint 19.x is based) came with version 11.1. Ubuntu 18.10 comes with version 12.2. It is possible one of the point releases of Mint 19 could upgrade the version of PulseAudio, but I'm pretty sure that is not how it usually happens, unless Ubuntu were to backport the 12.2 version to 18.04.
Worst case scenario is sometime in 2020 everybody will be fixed that is running the latest Mint. At least, in respect to the SoC issues.
For anyone that really cares,
this link covers the bug discussion that involved issues with everything that affects sound (kernel, alsa and pulseaudio.)