Switch to using JSON for as much data storage as it makes sense for

[Ernest314]

System.Text.Json (if implemented properly) would make data-storage human-readable, and at only a slight cost to performance (and only on startup, generally?), be more robust, and remove the need to manually program custom serialization/deserialization for each instance.

[Ernest314]

See: https://learn.microsoft.com/en-us/dotnet/standard/serialization/system-text-json/how-to

(includes both serialization and deserialization)