https://tidal.com/sound-quality
That's just one place to get HQ music. It's not exactly what you're looking for, but it's part of the solution.
I doubt they'd ever do something like that for movies and tv. Blu-Ray quality can't really be streamed and a download would be 20-50 GB which they probably just don't want to offer or else they would have by now.
Max has really good streaming quality, I'm sure it's not quite as good as blu-ray but it seems to be very high bitrate. Netflix on the other hand is absolute trash.
All the streaming services constantly adjust quality based on your connection, with no option to turn that off and let it buffer instead. I've had HBO Max go from looking fine to utter dogshit in the middle of a show. I pirated it after that. I was paying for the service (well, someone else was and I was using it) but still got a better experience from pirating a BDRip.
