[ 0.155142] ACPI: Executed 1 blocks of module-level executable AML code
[ 0.158586] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
I am confused why you filed a bug for this
[Firmware Bug] - so this is Linux warning of apparent misbehaviour by the BIOS/firmware of the system not a Linux bug
Linux ACPI always tells Bios it's windows without "acpi_osi=linux" kernel parameter. The log is just a warning that Bios queried OS was Linux or not and Linux didn't acknowledge it as "Linux". So this is not a bug.