Intel has updated the advisory page, I think the doc is at v1.3 now:
https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00086&languageid=en-fr
https://www.intel.com/content/www/us/en/support/articles/000025619/software.html
The list of OEMs is larger now:
Acer
Compulab
Dell Client
Dell Server
Fujitsu
Getac
HP Inc.
HPE Servers
Intel® NUC, Intel® Compute Stick, and Intel® Compute Card: Support Information
Lenovo
MSI
Panasonic
Quanta/QCT