Sometimes very guilty of this but I've done the "type as I think" then "end up figuring out the answer before I finish explaining my question" enough times that

Sometimes very guilty of this but I've done the "type as I think" then "end up figuring out the answer before I finish explaining my question" enough times that I now make an effort to fully form my question before sending. The exercise of trying to concisely explain the situation and form the question is frequently enough to sort out a path forwards. Not all coworkers enjoy being used as a chat-based rubber duck!