This has always been my experience, going back I'd say at least to the early 2000s on cheap laptops, and all the way back to the earliest days of sleep and hibernate on desktops, where sleep just doesn't matter that much.

When I started dabbling in boot code around 2006, I read a bunch of the specs and one of them was ACPI, which I only scratched the surface of.

I think until then it had just not occurred to me that a modern paged protected OS would even want to call into any code supplied with the computer, vs. having it come from a driver disk, or be built in to the kernel where everyone can see it.

The whole idea of a bytecode interpreter running random code supplied by a fly-by-night system builder is a little unsettling.