Holding a ceasefire during the Olympic Games is a tradition dating back to the ancient Greeks and should be honored around the world. Macron is not only calling for Russia and Ukraine to lay down their weapons for two weeks, but he's calling for every conflict to take a peaceful break.
Ukraine has typically used such ceasefire suggestions to rearm itself, so Russia must exercise caution here and consider its own national security interests. Moscow has also been the one calling for actual peace agreements to end the war, but it will not take a temporary pause just because Kyiv is running out of bullets.