Jabra Direct may be necessary for updating the firmware on my Jabra Evolve 75. Unfortunately, it doesn't work in my current Mac Mini, running OS 10.15.3 Catalina, or in an older MacBook, running OS Yosemite. In addition, it insists on changing my audio settings so that FaceTime calls get their audio cut out. To add insult to injury, there is no "uninstall" option. I had to prowl around the Apps and Library folders to delete all the bits and pieces of this software.
In short, the software isn't malicious, but it is so haphazard that it might as well be.