.NET MAUI provides multiple storage options for caching data locally on a device, depending on the nature, structure, and size of the data. The three most commonly used options for storing data locally in a .NET MAUI app are:
Preferences: Stores data in key-value pairs
File system: Stores loose files directly on the device through file system access
Database: Stores data in a relational database-Store local data with SQLite in a .NET MAUI app https://docs.microsoft.com/en-us/learn/dotnet-maui/store-local-data/2-compare-storage-options