Linq WHERE condition internal work

• Using LINQ often results in more concise and declarative code. For example 

  var evenNumbers = numbers.Where(n => n % 2 == 0);
  

   This is easier to read and understand compared to:

  var evenNumbers = new List();
  foreach (var n in numbers)
  {
      if (n % 2 == 0)
      {
          evenNumbers.Add(n);
      }
  }
  

  When using for or while loops directly, you need to manually handle iteration, conditional checks, and modifications to the collection, which can lead to common errors like off-by-one errors, skipping items, or modifying collections during enumeration. LINQ communicates what you want to do, while loops communicate how to do it. This high-level abstraction makes LINQ easier to understand at a glance.

While LINQ is a powerful tool, there are cases where manual loops might be more suitable:

• In extremely performance-critical code, manual loops might be faster due to the overhead of LINQ.
• When the business logic is complex and involves multiple steps, manual loops might be easier to understand and maintain.
• Manual loops can be easier to debug, as the execution flow is more straightforward.