@larry5729
Can’t you just do a comparison of with MQA and without and see which one you prefer? Lots of people live without MQA and prefer hi-rez over MQA (Qobuz vs Tidal).
A better streamer can makes a difference. It will lower the noise floor, reduce the jitter issue associated with digital audio but only if the DAC can actually resolve the difference. The USB interface is quite problematic and requires some extra circuitry to be top notch (there are those who say it will never compete). You can put premium gas in a econobox and it won’t make much of difference but regular gas in a Corvette is quite noticeable.
I’m a believer “The first watt is the most important watt.” and that what you feed it is even more critical. Get the best input you can afford even if it causes you to rethink your budget on cables, amplifiers and even speakers. There are many ways to get big buck sound but all of them begins with the input.