MQA is just gimmick and it is scientifically proven. If you are hearing a difference it is because it is a different master or placebo effect. Read this article if you have few minutes.
https://audiophilestyle.com/ca/reviews/mqa-a-review-of-controversies-concerns-and-cautions-r701/
https://audiophilestyle.com/ca/reviews/mqa-a-review-of-controversies-concerns-and-cautions-r701/