I’ll go one further and say that maybe it’s time we had OS’/kernel/API base that isn’t just better suited, but is explicitly designed for the massively multithreaded, ludicrously fast, massively concurrent hardware we have in spades these days.

Alas I am not as OS dev, I have not the skills or understanding to not how to build that, or what this would involve, but I do think it’s clear that what we have at the moment isn’t as well suited as it could be. Io_uring / Direct-IO seem to be better suited though.