Why not free li2cpp metadata?

I saw something strange while managing the memory of the project I'm working on.

whenever a generic class is used, memory is allocated from li2cpp memadata and is not released until the end.

This is a problem because we manage a fairly large amount of data using generic classes.

Is there any way to free this?

If you can't do this, I'd like to know why il2cpp is configured to not unload these memories.