About ADL in GPU-PRO drivers, just found a beautiful answer:

https://bugs.freedesktop.org/show_bug.cgi?id=96786

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ADL is not supported in the amdgpu-pro driver.  The same functionality can be accessed via standard Linux interfaces (e.g., hwmon for temperature and fan control, sysfs for clock control, etc..
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So AMD decided not to worry about ADL support in new drivers for Linux. Excellent solution.