Collision Set Defines which Collections are part of the Collision System.
Everything All visible scene objects are part of the Collision System. (Default)
Include Collections Only the listed Collections are used.
Exclude Collections All except the listed Collections are used.
Ignore Wireframes Don't collide with objects that have their display mode set to 'Wire' or 'Bounds'
Ignore Animated Don't collide with objects that are animated or have active rigid body physics. This applies to the object itself, any of its parents and any enabled constraints.
Full Evaluation SSlow but comprehensive: Evaluates the objects considering modifiers, constraints, and other procedural edits. When disabled, only the base mesh data will be used (Faster).
Collection Instances Includes Collection Instances in the Collision. This includes Linked Libraries and nested Collections.
Samples Collision substeps: the default value should cover most use cases.