How do Blueprint API References work per frame?

I’m currently creating a blueprint class to handle object interaction prompts once the player enters the ‘space’ of the object. In this example, does the ‘Get Player Character’ function run every frame? And do the red event boxes run every frame?

they run only once, when the overlap begins/ends. Not continuously while the character is overlapping.
OnComponentBeginOverlap | Unreal Engine 5.5 Documentation | Epic Developer Community