✅ How do I merge a list of dictionaries based on keys using LINQ?

So if I have something like:

[{ number: 1 }, { number: 2 }, { number: 3 }]

[{ number: 1 }, { number: 2 }, { number: 3 }]

I want to get:

{ number: [1, 2, 3]}

{ number: [1, 2, 3]}

I allow duplicates.

✅ How do I merge a list of dictionaries based on keys using LINQ? - C#