Let replies send themselves
Per account, off by default, and anything that looks like a complaint still comes to you.
Every reply is drafted for you to read. Sending them on their own is a separate switch, it is off until you turn it on, and it is per account rather than all or nothing.
Anything that reads like a complaint, a refund, a health question or an argument is never sent on its own, whatever the switch says. It comes to you with the draft ready, because those are the messages where being fast is worth much less than being right.
Three accounts cannot have it at all. Google closed messages to tools like this in 2024. LinkedIn does not open Page messages to tools at all. Threads lets a tool read a reply and hide it, and nothing further. Those switches say so rather than sitting there looking available.
On Facebook there is a rule worth knowing: a message has to be answered within 24 hours of the person sending it, and they have to write first. That is Facebook's rule rather than one made here, and it is why a Saturday enquiry can be too old to answer by Monday.
If this did not cover it, ask. A person reads it and answers the same working day.
Ask about this