How do Game State Checks work in Riftbound, when are they checked, and how are they applied?

Ruling: Cleanups are Riftbound's game state checks. The updated rules will substantially expand on when they happen, what they check, and what order things happen in during them.

Nuances:

• The current core rules do not fully describe everything typically associated with game state checks
• More detailed information will be available in future rules documentation updates