That is not true. Try Amazon Echo Studio, Sonos or Yamaha, among others. Sonos or Yamaha with AirPlay 2. With a big difference, without cuts.
I talk about Sonos and Yamaha because I have them. But you also have Sony, Bose, JBL,.......
HomePod "big" - 325€
Amazon Echo Studio - 239€
Both support Dolby Atmos and can be used with Apple Music.
The HomePod Mini does not support Dolby Atmos
My hearing is not fine enough to appreciate big differences.
I just want to be able to listen to speakers with acceptable quality and without cuts. I don't think that's asking too much.
An Amazon Echo Dot costs only 65€, you can listen to Apple Music and I can control my home accessories for half the price and equivalent sound than HomePod mini.
I'm usually happy with Apple products, but if one thing is wrong, it's wrong, and in the case of the HomePods (Mini or not mini), they are bad products.