I have issues with auditory processing and attention. If you deliver information to me verbally in a format where I cannot rewind/playback, have no subtitles or text to consume alongside it, and demand my full attention, I will have objectively worse reception of whatever information you're communicating. The way neurotypicals demand adherence to these, to be blunt, ceremonies of conveyance is tiresome and interferes with the goals they espouse of communication.

In fact I would go so far as to say a lot of the time, the goal is not communication at all; it is a demonstration of one's power and authority over others. If your goal is actually communication, text is better in every way. Every reader can read at a speed of their choosing, re-read parts they missed, have a speech-to-text program read it to them if they like, stop in the middle and tend to something time sensitive, what have you. A live speech allows none of this.

So yes, I probably use my phone while you're talking. I probably have my AirPods in too, because the settings where they remove background noise and just give me the person speaking are phenomenally useful. I might even be watching or having my phone transcribe what you're saying, too. And if you're going to try and chastise me for it, fine, that's your prerogative, but then I'm probably starting a job search for a place that will appreciate my skills and not demean me for not being able to perform "good worker vibes" to your arbitrary standards.