If the anchor snags & the trip(s) fail to break then it will pull the bow round. This may be quite sharp depending on your speed & you need to be aware that it's a possibility
Ideally get someone to show you how to do it.
It isn't done at high speed & you need to pay attention to what's going on.
The main risk is running over the rope & fouling the prop - which could result in ending up stern on to the tide & the stern being pulled down & under if you can't clear it.
I know a professional fisherman who whilst shooting a string of pots got the rope between the last pot & the dahn buoy wrapped round the outboard's prop. He said it then went pearshaped very quickly. Unable to reach the rope the stern went down as the rope tightened against the pots & when he realised the water was coming in over the transom faster than he & the bilge pump could throw it over the side he put out a mayday & went into the water as the boat went down under him. Picked up by another boat within a few minutes & the boat was recovered a few days later - a considerable distance from where it had gone down.
This video worth watching.
The buoy must be large enough to support both anchor and chain, so it's something else to take up a fair bit of room in your boat.
Practice in shallow water out of a strong tide run.
Finally, do you actually need to use one? In shallow waters I don't bother & just pull manually.