I don't find this thought experiment helpful, to be honest. High-sounding philosophy aside, it all comes down to which is more likely, that a mind (God) existed before our universe, or something inanimate (a previous collapsing universe, random atoms just sitting around until they exploded, etc.). Either way, the crucial question of how it all got started is beyond the ability of science to grasp at the present time. Saying that our universe came from another universe does not answer the question of where that universe came from. Saying that God made the universe does not explain how God came into being. Either way, the root cause of our existence is fundamentally incomprehensible.
Considering how well everything came together, it's hard for me to believe that it was blind chance, but as some people are fond of pointing out, this could be Random Universe, Take One Trillion And Four. The previous random universes may have been a disaster, and it's only because we happen to stand in this universe, having not seen any other, that we can say that it seems designed. That reasoning feels disingenuous, as there is no evidence for or against previous universes. Absence some scientific evidence, we can only rely on common sense. Common sense says that things that look designed are designed. This does not require belief in the God of the Bible. I lean towards deism. Some people lean towards simulationism.
But sitting in an armchair and pondering it cannot get us anywhere. It's a matter that is truly beyond our ken.