I got curious myself and agreed, so I went looking.
A lot of sources specified that it was part of a technical requirements checklist, and…
Yeap. It doesn’t explicitly require a “press any key” screen, but it gives a more pleasant screen to look at while you select a user. People online also say it’s used to detect which controller is in use.
If you add a feature like this to a game, it becomes harder to maintain if there are discrepancies between builds. So presumably it’s usually just left in rather than removed.
5.1 and 7.1 systems aren’t all that widespread, even in the music industry. Surround kinda sits in the same place vr does for me. It’s immensely cool, but it’ll never become standard due to hassle and lack of support.
Most of the recent innovation in sound has been trickled down from the music and film industries. Just a general increase in the capabilities of soft synths and a better understanding of foley, alongside dedicated in house recording studios have raised the bar of audio.
To be honest I agree with you that sound is overlooked, sound engineers truly are unsung heroes. I mean even when people point out the sound in a game, it’s usually directed at the composer.