Sample code to check whether Dynamic Apex works with params. The input param is printed in the method => Dynamic Apex works with params

DummyInstantiableCheck

// Get the Type corresponding to the class name
Type t = Type.forName('DummyTypeInstantiableOne');

// Instantiate the type.
// The type of the instantiated object 
//   is the interface.
DummyTypeInstantiableOne dtiOne = (DummyTypeInstantiableOne) t.newInstance();

// Call the methods that have a custom implementation
System.debug('Output for the method :' + dtiOne.processRule('one'));

DummyTypeInstantiableOne

public with sharing class DummyTypeInstantiableOne implements TypeInstantiable {
	public DummyTypeInstantiableOne() {
		
	}
	
	// Implementing the interface method
	public Boolean processRule(String input){
		System.debug('DummyTypeInstantiableOne String input :' + input);
		return true;
	}
}

TypeInstantiable

// To test the execution of method based on class
public interface TypeInstantiable {
    Boolean processRule(String input);
}