How do I hide the mouse pointer on Windows 10?

I just wanted to ask if it is possible to hide the mouse pointer on a second monitor. This monitor (in my case, a projector) should run with the setting Duplicate, that is, I want with my example. Laptop can operate the program XY, but without the audience sees the mouse. Is there a separate function of Windows or your own program?

Look here for:

https://www.softwareok.de/?seite=faq-Windows-10&faq=171

Thank you, but that does not really affect my purpose. Here's an example: I have an audience that should see something on a screen, but not like PowerPoint on slide, but, for example, a question with different answers. Each answer can be selected and, as it were, "logged in". That means I can use the mouse on my monitor (which the audience does not see) and interact with program XY while the audience sees the program as I do, just without the mouse pointer.