The Zen stream isn’t a DAC it passes through what it’s given you should set it to no mqa as it’s neither a decoder or renderer, you don’t have mqa decoding active in Roon so won’t get the first unfold it’d just passing through the untouched mqa stream which is 48/24 before unfolding. The Aries isn’t mqa compatible in any way so it won’t see anything other than what Roon gives it. You don’t have an MQA DAC you will never get beyond 96/24 when you turn on Roons MQA decoder.