One thing that also matters, that people tend to neglect, is ceiling height. In general when you need to do focused concentrated work, it’s best to work in a room with a low ceiling, the lower the better. Ideally it’s a ceiling you could almost touch.
If you need to do more creative thinking, it is better to have a high ceiling, the higher the better (think cathedrals), though there must be a ceiling at some point.
Seems a bit of a stretch to state this as a global fact. May be true for you, but personally I hate when ceiling's are too low, it makes me feel claustrophobic.
One size fits all decrees like this are almost always baloney.
If you need to do more creative thinking, it is better to have a high ceiling, the higher the better (think cathedrals), though there must be a ceiling at some point.