@Sven Somehow I was convinced that sleep must work reliably in order to say that a computer “just works”. Do you disagree? You also wrote yourself earlier:
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If things like Bluetooth or suspend are not working “out of the box” this can be mentioned as a limitation.
I don’t see it mentioned in the table for p51.
In my opinion, working sleep must be among the criteria to include in this list, especially given that Qubes OS does not have hibernation. If the machine doesn’t wake up from sleep, the standard system menu misleadingly suggests to users to loose all their data unless it’s saved beforehand.