What gives me fatigue is the opposite. It's the meetings where I have nothing to say whatsoever. It's driven by the refusal, or inability, of organizers to plan or focus their meetings. I spend >95% of my meeting time trying to judge how little attention I'm allowed to pay to what's being discussed. Because I usually can't just leave and actually focus on work, but I also can't pay attention because the conversation is meaningless to me (think: discussing extremely specific problems of projects I've never heard of). There's no winning move, so "try to keep an ear open for my name or other keywords while I fidget, draw, or otherwise waste time" is unfortunately the optimal strategy in most meetings, even though it's extremely tiring. Can't imagine if I had to have my camera on.
Now that I've written all this out... I might just start leaving meetings and hope I don't get fired.