Wait rarbg is back?

I think it's a bit overblown how new you think things need to be. As an example if you look at Microsoft Teams devices, they are stopping support for Android 9 this year. Android 9 came out 2018. Their next big step would be android 13 which is still running the 5.15 kernel.

What if you played some ultrasound? You can't hear it and the speaker is being used.