Another push for sched_ext

No, no. There isn't a “scheduler ecosystem”. There is a scheduler *monoculture*, and for twenty years now people have interpreted that as damage and routed around it. The few of those who've dared to negotiate with the scheduler tyrant directly in the past have burned out and left kernel development forever - which is why it took a witheringly embarrassing fifteen years to properly address the Wasted Cores paper with more than a band-aid.

The only two choices remaining here are either accept the reality of the situation and address the root cause (in old hacker parlance, "maintainer needs face time with a LART"), or continue to be obstinate about it and encourage downstream hacks to proliferate - both individual and corporate. The corporations don't need royal consent to F up the kernels they ship on their devices, they've *been* doing it. And because they're butchering their device-specific kernels with hardwired hacks, for want of a sane pluggable mechanism, *users* are the only ones that get screwed because they can't turn it off.