Putting components together randomly, whether high end or not, is certainly not calculated to get the best results. Beyond that, hearing is so subjective it’s hard to say more. As you said, you don’t like the Sonos Macintosh match but obviously a lot of people think they are perfect together.
likewise, I’ve been advised that Boulder amps don’t match well with Sonus. On the other hand, I’ve heard from people who have that very set up and claim its the best. I think you can only know what works for you, it’s a mistake to assume it will sound best to someone else. Good advice can help steer people to try certain combinations, but beyond that it gets to be very personal.