そもそも大元のカーネル自体msが投資してる定期

Microsoft’s Open-Source Contributions for Platforms Reliability and Performance.
We helped bring seamless kernel update features (Kexec HandOver) to the Linux kernel 6.16
https://techcommunity.microsoft.com/blog/linuxandopensourceblog/innovations-and-strengthening-platforms-reliability-through-open-source/4468172