I have so far tried Tidal and Primephonic for classical music. To see exactly what they are delivering I have run file segments through MusicScope, a program that tells you exactly what you have. Keep in mind that when your DAC registers a number like 44 or 48 etc. it is only registering the container for the data and not the data itself.
For Tidal: I have no idea what you get when you play its "master" files, for to hear them "correctly" you need a MQA DAC which I do not have. In any event it is an artificial proprietary manipulation in which I have no interest.
Tidal "HIFI" is supposed to provide true 44/16. But it does not. On my Chrome browser, it does not even come close. On their own app, it does come quite a bit closer, but falls short. There’s no telling precisely what its manipulation of the original red book data provides.
For Primephonic: The tracks are either in 44/16 or 48/24. I don’t believe there are any others. However it doesn’t indicate to you in any way which it is you will be listening to so I tested a few to find out. It does deliver a true red book or 48/24 as promised. So with Primephonic you can believe your DAC read-out.