In Tidal I do not see any indication of what MQA is and what MQA Studio is. Simply, sometimes I play some disc and it appears only as MQA.
Regarding the integral of the Beethoven symphonies of the early sixties, I also think that it is artistically good. I think that with Karajan, a sector of the "connoisseurs" has been unfair to him. It is true that he was a "genius" of marketing, but from there to some affirming, that it was worth very little as a director, there is a lot of distance.
By the way, talking about Beethoven, I recently discovered the Fifth by Pierre Monteux and the LSO and I was impressed.