Linux already won years ago. Linux won so thoroughly that Windows 10 includes a Linux subsystem, almost every supercomputer runs Linux or BSD, and the majority of all mobile devices use the Linux kernel.
Not too bad for a bunch of nerds sharing code. :)
Let’s keep in mind that if this is a state actor or some sort of global organized crime, then they don’t put all their eggs into one basket. If that’s the case, they’re going to have a bunch of other plans and backdoor attempts ongoing. This isn’t the end and we can assume there’s something else somewhere that went unnoticed.
Security is a constantly changing war of attrition, not a goal/product/configuration.