You don't have to use the component model in CLR. And if you do not, the remaining subset is basically just as expressive as wasm - you can compile C to it, for example. It's "just like a CPU architecture". And then you can build your own component models on top of that, or FFI with existing ones (I had to do this with COM once instead of using COM Interop - it was all hand-rolled with structs etc).