ah the enshitification of the pc. we are well into it. M$ started it with the "Modern Standby" / s2-idle terrible idea.

Respectfully, no, not even a little bit. That’s normal everyday microcontrollers for you.

Yeah, wake from deep sleep is always one of the weirder bits. It's just hard to do.

You clearly have never tried to implement sleep on a microcontroller. It has nothing at all to do with ACPI. And this kind of eldritch bug is par for the course. It has nothing at all to do with Microsoft or PCs at all. Microcontroller sleep just sucks in a lot of incredibly weird ways.