Not fully sure if this is related.
I have a laptop which has a lot of these APIC bugs and the compatibility broke with Qubes 4.3. After investigating a very long time, I found that it was because Qubes 4.3 is using Debian 13. Then I found that the laptop is compatible with Debian 12 but not with Debian 13. And after investigating more, I found that my hardware bug came with recent versions of Linux kernels (I am note sure, around linux v6.12). Debian 12 with recent intel-microcode versions works, Debian 13 without intel-microcode also works. But in fact that’s probably a mix of recent Linux kernel versions and recent intel-microcode versions which provokes these APIC bugs.
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