If quality playing on a HiFi is important along with having access to all the tracks in an album rather than some missing due to rights issues (as is often the case with Spotify), just buy the CD, rip to FLAC and store on a NAS to play on the HiFi or other devices.
However, Amazon Prime do music streaming now, and Prime sub is getting you Movies & TV also plus the free next day delivery.
Generally on Amazon you can buy albums as MP3 to download. I think they’re 320kbps MP3s which is good, even if not top audiophile quality and not lossless. Anything I buy I prefer to get it lossless if I can as I can then convert it to whatever I like without loss of quality and still have the original, just like a CD.