Ergonomics recommend switching between sitting, standing and moving every hour, and about converting video calls to audio calls to have some variation. I’m told of the benefit of mini-breaks throughout the day (like a 3 minute meditation break) both for mental health and eye health.
I’ve learned to pay attention to when I tend to be more irritable or angry in meetings (and I’ve started to learn which meetings I’m most likely to manifest these reactions to). It’s an indicator I need time off, or at minimum, need a break from meetings to use my time however I need to, which is usually a blend of cleaning/organizing the house and catching up on some of my writing or thinking.