HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

Those who want to cheat will always find a way.
And if a person has enough knowledge and skills to implement this in multiplayer, then they will also have enough for other cheat-modding, without any HD.

You are absolutely right here, because in my opinion, the main problem in Heroes regarding "cheating" is learning how to prevent people from opening a generated map with an editor and from accessing save files before the end of the game. Something like that).

By the way, I have a question: is it possible to somehow transfer the settings that are in HiRez to a form with general settings, for example, so that choosing paths, autosaves, and other things that often change can be done more easily and quickly? As far as I understand, there shouldn't be any particular difficulty in this. I would be grateful for such innovations.