What outcome occurs when a game object with a trigger collider overlaps with another collider?

The outcome when a game object with a trigger collider overlaps with another collider is that the trigger collider causes no physical interaction. Trigger colliders are specifically designed to detect overlaps with other colliders without producing physical forces or responses typically associated with colliders that interact physically. This means that while the colliders can detect when they are overlapping, there is no physical reaction such as bouncing, sliding, or any other form of force acting upon either object involved.

Triggers are commonly used for scenarios where you want to detect when an object enters a certain area without affecting the physics of the objects. For example, a trigger collider might be used to detect when a player enters a defined area to start a cutscene or to collect an item, where no physical interaction is required.