It is irrelevant for many desktop Linux users but some distros will have installed the vulnerable software by default on desktop installations and exposed it to the network. That could make it relevant for some percentage of the small percent of people who use desktop Linux and haven't applied security updates and have network misconfiguration or other vulnerabilities exposing their machines. On a scale from 0 to Crowdstrike it is basically a 0 in terms of real impact. It is still great example of an astonishingly stupid by design vulnerability that should not exist or have survived review.