Sadly, due to the Google vs Amazon war the neat and effective Chromecast Audio is not, nor ever will be I doubt, compatible with Amazon Music.   This means it is a no-go for many users, a shame as it is £10 a month cheaper than Qobuz.
Awesome overview of streaming services available. Should be very helpful to members new to streaming.

https://www.consumerreports.org/streaming-media/best-music-streaming-service-for-you/

Note: not all services are covered. For example, Qobuz.
Let the upsampling - remonetization begin!!!
Very rare to source undithered 192/24 files.
Ear training schools will be needed.
12 mb mp3 to a 280 mb 192/24 bit files sound the same to most untrained ears. Heck some pay top dollar for vinyl cut from poorly dithered 44.1/16 bit files. One never knows the true source file unless it comes off the console - and most studios multitrack at 48k with poor summing. Sorry to crash the party - just speaking from the other side of the glass.