Quixel and UE4 outdoor scenes

No, that’s not true at all. Very few games use any type of dynamic GI and none of them are all that great, the system that was being developed for UE4 was getting there but required too much processing power. The games that try to put a system in don’t have any choice-they might have day/night system so they couldn’t use precomputed lighting if they wanted, or it would require too much memory for precomputed lighting. But precomputed lighting is still going to be more realistic for a very long time.