As per the referenced question, multiple primary keys is not supported in OrmLite so you would not be able to create tables using OrmLite or use any of its APIs which rely on primary keys.
But you should not be using OrmLite to modify Identity Auth tables either way. As per your previous question if you want to make changes to any Identity Auth tables you should be using .NET’s built-in classes like UserManager<T> and RoleManager<T>, etc.