Using MusicCast, nothing seems to sound better than Qobuz. Hi-res via Qobuz is supported in MusicCast. As was mentioned, Amazon Music hi-res is also supported and sounds great.
Airplay 2 supports up to 24/48 BUT, Apple Music will only output 16/44.1 when using it playing Hi-Res tracks from Apple Music. Interestingly, Amazon Music hi-res will go over Airplay 2 up to 24/48 depending on the source device used for playback.
Tidal is a mixed bag like others based on the service tier and source device used for playback. Just because a service supports hi-res doesn’t mean it will be available for playback on any given device. Just ask Apple Music users.
I’m not convinced hi-res sounds any better than good 16/44.1 these day but I also don’t like devices converting signals for output for one reason or another during playback.
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