I literally saw the Raptor pin a Bronto. If the Raptor can pin dinos as huge as that, it has potential for PVP, although maybe it is hard to land... The core target of the Bronto is the belly, which is why it might have been possible.
The Raptor isn't completely useless compared to the Deinonychus, even though it has lower base speed, it gets 3% speed per level compared to the Deino's 1%. Max it's speed and set it on aggressive to pin players! (Imprint too if possible, it needs the bonus HP and speed)
On mobile a taming two of three of these and leveling them up will allow you to take almost anything. Keep their inv full of food and their health basically never goes down. One of the best tames I’ve found because they’re speedy killers and regain Health at unheard of speeds