To a certain extent, yes. Germany and Russia would both have better futures if WWI. Germany would never have had to pay any of the war reparations it had to pay under the terms of the Treaty of Versailles. Without any war at all, the Kaiser would have remained in power, perhaps eventually establishing a parliament. Even when the Great Depression still happens, Germany isn’t utterly destroyed by it, meaning Hitler and the Nazis have no path to power. Without Hitler, there’s no European theatre for WWII, no fascist Spain, no Holocaust, no Israel, and no East and West Germany. There may still be a war in the Pacific against Imperial Japan, but not a World War, just more regional conflict.
Russia meanwhile is a bit harder to predict. It was still a bit of a backwater country when it entered WWI. The Czar was quite unpopular as well as the war, plus a famine sealed the deal for the February Revolution, the provisional government, and the rise of Communism. Without WWI, Russia will probably overthrow the czar when the famine hits. However without the loss of WWI, Lenin doesn’t have the opportunity to start the October Revolution and create the Soviet Union. Without the Soviet Union, there isn’t the threat of communism to scare the west into a situation like the Cold War. This would likely result in more social programs in western countries since they wouldn’t likely be viewed as evil socialism. Of course, without the Soviet Union or WWII, there’s no competing ideologies that trigger divided countries like Germany, Korea, or Vietnam, therefore, there’s no Korean or Vietnam wars. There’s also no Space Race or Race for Nuclear arms. Alternate history is hard to predict though.