The main difference between ArrayList and List in C# is that ArrayList can hold any type of object, but it doesn’t enforce type-safety. On the other hand, List is a generic collection that enforces type-safety by allowing you to specify the type of elements it stores.
List is generally preferred over ArrayList for better performance, readability, and compile-time type checking.
![csharp-arraylist-vs-list](https://www.shekhali.com/wp-content/uploads/2023/07/csharp-arraylist-vs-list.png)