For me personally it's information deficit and context dissonance that fatigues me. When I am in a meeting room I see all the faces, I can tell what everyone i

For me personally it's information deficit and context dissonance that fatigues me. When I am in a meeting room I see all the faces, I can tell what everyone is looking at and read their emotions from their movements etc. It's all subconscious though so I am not distracted by this process. I also know when I am not being looked at, and can relax some of my own social cues. In an online meeting, I get none of that so I am working a bit harder to piece everyones contributions to the meeting together. I also have the dissonance of context, I am in a meeting here but also on my computer and in my house. You get good at it but you are fighting off distractions regardless. Meetings are a pain regardless but I do find them less tiring in person.