Intel does a lot, by which I mean they sponsor people to do it. Changing user facing utils is a bad idea as it breaks things. Although I don’t really keep up with it I know they’ve been changing things like the number of levels of pages etc, over time moving to sysd instead of init and stuff but the latter was a decade ago now. You can probably trace the maintainer to who sponsors them from here: https://en.m.wikipedia.org/wiki/Linux_kernel_version_history