There are companies where meeting rooms are not permitted to have CHAIRS. And since everyone must stand for the entirety of the meeting, they tend to be shorter, with well-distributed agendas circulated beforehand and little toleration of cross-talk and distractions.
"Productivity and effectiveness can really benefit from an uncomfortable environment..."
Reminds me of Winston Churchill's speech at the reopening of the Parliament chambers that were rebuilt after being damaged during the London raids in World War II.
He noted that the same measurements were used in the rebuilding as in the original, that the main room was just as uncomfortable as before... thus making it difficult for oratory and discussion to drift far from the points that were important to discuss. He stated that Parliament's cramped quarters were perhaps the greatest single material contribution to efficient British governmental decisionmaking.