Opinions are mine. Mine! All mine!
>i'm caving for a world where hw manufacturers exist who fully embrace opensource development,
Those do very much exist! My go-to is System76. There are others, e.g. arguably Framework.
> and are rewarded for that...
Oh well, one can dream anyway.
The freedom Linux gives you also gives you the freedom to slap Linux on some random bit of Windows kit and then blame Linux for failing to work around the broken firmware. Apparently this is preferable to buying hardware that works with Linux.
Yeah, that's not shocking. Linux uses the Intel ACPI infra, whereas Windows uses Microsoft's. It's as good as they can do, but it's not going to be possible to perfectly replicate Windows, let alone improve such clearly buggy firmware, at least generally.
It is possible on Linux to override some of the firmware (most notably the DSDT, e.g https://wiki.archlinux.org/title/DSDT because so much hardware is broken). So, if you can make or get a fixed version, you should be good. A wholesale replacement of all the ACPI assets, though, seems unlikely. I could well be wrong, though.
Anyway, in this case, I suspect the poster was advocating for Macs.
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