On begin play, you can use the get overlapped actors node on the actor with the collider/the collider itself, making sure the class filter is set to your player characters class, and then check whether that array has anything in it.
On begin play, you can use the get overlapped actors node on the actor with the collider/the collider itself, making sure the class filter is set to your player characters class, and then check whether that array has anything in it.