Absolute nonsense.
Apple may try to market it that way, but anyone that actually knows how digital audio works can tell you anything above 20/48 on the playback side is utterly pointless and that most albums aren't even actually using 12-bit resolution on the masters.
24/48 is great for recording headroom, but if anyone starts talking about stair-steps and digital and how more bits = less jaggies on the steps, RUN away because they're certifiably IGNORANT about how digital audio works.
Bits=Dynamic Range
Sampling Frequency = Bandwidth
No human can hear above 20kHz.
Oversampling solved "brick wall" filtering issues around 1983. 48kHz is more than sufficient for any recording needs. Most signals are nothing but noise much above 20kHz and you can't hear them regardless.
Vinyl LP records that many audiophiles rave about have "effective" equivalent dynamic range of 11-12bits maximum. Sadly, the "loudness wars" mean many CDs "used" even less than that, some far less than 8-bits even.
The best made recordings in the world rarely contain more than 18-bits dynamic range.
Mist people would not like 18-bits of dynamic range even if they could get it because dynamic range is the difference between the quietest sounds and the loudest. You would go from barely audible to horn honking loud in an instant. Think real cannons going off in the 1812 Overture and you standing right next to them loud. Most people don't like that at all!
In fact, the compression methods that lead to the so-called loudness wars are due to people not being able to hear the quieter passages of music without turning up the volume to the point where the loud parts are blasting their ears and/or causing hearing damage.
Dolby movie standards are 105dB peaks for regular channels and 115dB for the subwoofer. Most people don't play movies (let alone music that peaks louder longer) anywhere NEAR that at home! Yet people think they need more bits (out of sheer ignorance what they're used for).
I know many won't believe me here either, but it's the truth. They chose CD standards for a good reason back in the early 1980s. Few recordings ever came near the limits of what the CD is capable, but people ignorantly believe poor sound quality is due to hardware limits rather than poor recording and more likely poor mastering issues.
Most SACDs sound better than the CD version because they remastered them for better sound quality, nit because they need greater than CD standards to achieve it, but marketing loves a good lie. Sony's dual market discs have a CD side and a SACD side. The players are set to play the SACD signals slightly louder than the CD so any direct comparisons will think the SACD sounds better (You tend to always choose louder as increased fidelity).
Now going to multi-channel like Atmos is a whole different story. But selling music as "hires" based on bits alone is utterly deceptive marketing.