Once Google Analytics processes data, it’s stored in a database where it can’t be modified.

This statement is true. Once Google Analytics collects and processes data, it is stored in its database in an aggregated and finalized form. This processed data is immutable, meaning it cannot be altered or deleted by users. This ensures data integrity and consistency for reporting and analysis. While you can apply filters and configurations to affect how future data is processed, you cannot retroactively change data that has already been processed and stored.