If you are a Tidal subscriber, you get MQA for free. Why not try it? It isn't a test. There isn't a right or wrong answer, other then does it sound good to you. They usually give a free trial subscription for a few months anyway. Tidal in general sounds really good, and a lot of the MQA recordings sound great. No loss in giving them a shot. Worst case scenario, you spend some hours listening to music.
As far as different sounding recordings, I have at least half a dozen versions of Simple Dreams by Linda Ronstadt on vinyl, all seeming to be from the time of its release, all in good shape, and all of which sound different then the others. One sounds dramatically better then the rest. What does that mean? Don't know, other than all recordings sound different in one way or another then the others. Digital is no different.
There is also no compelling reason not to try it. Other then some folks on the internet tell you not to. If I was going into this as a newbie, I'd do the free trials of every platform available, and then just see which one I liked the most. I'm committed now, as I'm a subscriber, and in Canada, there is no better option that works within my audio infrastructure. Sound quality across all of them is really good. Now, with so many good quality steaming options available, I think the platforms library, software, search functions and music recommendations are actually more important then the technology they use to get their best sounding music offering. My feeling is that Spotify will beat all of theand will likely end up as the best. Remains to be seen.
As for me, I'm just gonna keep using whatever is the best for me. I've been a Tidal user probably five years, and the sound quality has never been an issue for me. It was the audiophiles choice for years, and with all such things, it will be eclipsed by something newer and better in the future. MQA is a 2010 solution to a problem that just doesn't much exist anymore (steaming bandwidth), and likely will die sooner or later as that now just isn't an issue.
My 2 cents (1.6 cents American).