Was going to say this isn’t an issue with Windows (might not be) but then I don’t have any screen save power options enabled from ye olden days when all such things were warned against on DAW computers (don’t know if this is still the case).
Maybe not, I don’t know but just received a new audio purpose built system and it still has screen power saving disabled.
What “shouldn’t” be an issue and what is are sadly not always as close as we might like.
I know for Cubase 10 on Windows there were reports that screen power saving wouldn’t enable (how ever set) when Cubase was running so there certainly used to be an issue whether designed or not.