For contrast:
"All: my daughter is home sick, I won't be in the office today" (CEO style)
vs
"Hi everyone, I'm very sorry to make this change last minute but due to an unexpected illness in the family, I'll need to work from home today and won't be in the office at my usual time. My daughter has the flu and could not go to school. Please let me know if there are any questions, I'll be available on Slack if you need me." (not CEO style)
An AI summary of the second message might look something like the first message.