Hello! It definitely depends on the case. In general I would say that your recommendation can be linked to the risks, but it certainly doesn't have to be.
My best advice for the recommendation is to mention risks, but never to dwell on them too much - you want to be convincing your “client” (i.e. the interviewer) that you have a solution for them, not that this solution is fraught with risks. You hopefully would have had the chance to go into more detail on risks and the mitigation in the case itself.
So with that being said, you could mention measures to address the risks as one of your next steps, but I wouldn't use all of the next steps on that. You could mention some steps you would take to address the risks (without going into too much detail - the recommendation should be very brief), then mention an implementation plan as another next step, and so on.
Feel free to message me to discuss this in more detail, or book a coaching session to workshop a great approach to doing recommendations and practice them!