Multitasking
Handle multiple conversations, tools & tasks
Remote participants are rarely fully in the meeting because the meeting is rarely the only thing on their screen.
Multitasking in meetings is nearly universal on hybrid teams, and it is almost never talked about honestly. Someone joins a video call, keeps one eye on chat, handles an urgent message, and is technically present for the whole thing. The in-room participants may not notice. The remote ones do it too, but they are more visible to each other.
The problem is not that people are rude. It is that the meeting format often does not justify full attention, or the notifications are too loud to ignore, or both. A team that names this honestly can start to fix it: either make meetings worth the attention they ask for, or acknowledge they are ambient and structure them accordingly.
Some multitasking is fine and human. What hurts a team is the silent contract where everyone performs attentiveness while actually doing something else. That wastes the meeting and leaves no one certain what was decided or who is accountable for what.