[valcron1000]

> It couples the type (struct vs class) with allocation

Agree. Where things are allocated is a consumer decision.

> C# is just not ergonomic if you need to care about data layout in memory

I disagree. I work on a public high performance C# code and I don't usually face issues when dealing with memory allocations and data layout. You can perfectly use structs everywhere (value types) and pass references when needed (`ref`).

> Now you can write a function that inputs pointers and does not care whether they point to stack, heap, or static area.

You can do this perfectly fine in C#, it might not be what some folks consider "idiomatic OOP" but I could not care less about them.