How is not supporting "24-bit/192kHz" making a headphone obsolete? I would be surprised if you can even hear a difference on any AirPods compared to "24-bit/48kHz".
Everything above is more deeply rooted in belief than it is in reality - or as the old adage goes: „Music fans use their equipment to listen good music. Audiophiles use good music to listen to their equipment.“
There are people in the community who claim to hear differences between digital cables using error correction as part of their protocol (HDMI).