Unreal - Tick Functions, Delta Time, and the Task Graph

Ticking in UE is more complex than you might think.

There are actually two different ticking implementations you can leverage in UE.

The first uses FTickFunction and supports features like TickGroups,TickIntervals,TickDependencies. This is what AActor uses.
The second is is for gamethread tickable objects. To use, just inherit from FTickableObjectBase and override tick. It is ticked by UWorld::Tick after all the other groups fire. It is often used by object managers like Niagara, AI, Sequencer, and NetworkReplayStreaming.