I would expect a plan to have a lot more than 20 people watching something on their phone with AirPods (or a clone thereof). Just about everyone that's watching or listening to something on their phone nowadays is using BT headphones, because most phones don't have 3.5mm jacks anymore.
Your nearest Cloudflare office will also have a similarly chaotic art installation (called the office's "Entropy"), if there's another office closer to you. For example, Austin has a mobile with lot of translucent glass/plastic reflecting and projecting colored light all over the ceiling
Honestly I thought all of this was common knowledge at this point, back when I used Honey (many years ago) I saw its affiliate code in the address bar and thought "huh, that's how they make money"
Books will teach the essentials: my core UNIX knowledge comes from an SVR4 book I read in the late 2000s (a decade or more after it was relevant) and it's still applicable today
I would expect a plan to have a lot more than 20 people watching something on their phone with AirPods (or a clone thereof). Just about everyone that's watching or listening to something on their phone nowadays is using BT headphones, because most phones don't have 3.5mm jacks anymore.