Thanks for the quick response! However the sources he/she cited were 1. the Absolute page that I linked to in my previous comment, and 2. The only mention that is likely to mention Linux in the Securelist article is: "The first natural reaction of PC owners was to remove or disable this feature as s...

1. Below link shows you how to tell if Computrace is active by Vitaly Kamluk of Kaspersky
Also note Computrace works on Linux.

Just curious - where does it say that it works on Linux? Linux isn't listed as one of the accepted requirements:

https://www.absolute.com/en/products/dds/requirements