Have you looked into Ubiquiti equipment? They’re generally pretty solid, and might have everything you need.

Nowhere - the female end of the cord is what goes in the recess.

The word you’re looking for is ‘gleaning’; ‘gleaming’ is more like ‘shiny’.

I’ve always wondered, does the ear experience additional, unheard “loudness” when using ANC?

Absolutely! Biometrics are at best a username, not a password.

Doesn’t happen with spacecraft either, despite what Hollywood often depicts. In order to ‘stop’ in space, you actually have to generate thrust. The scary thing that can happen if you lose your engine in space isn’t getting stuck in one place, it’s smashing into your destination at full speed.

Jerusalem artichokes > potatoes