Hello ChardeeMacDennisFrank,
Thank you for using Apple Support Communities. Based on your post, your Home Button is making a rattling noise when you press it. We'll do our best to help out.
There is only haptic feedback when you press the Home Button. There is no vibrate setting to disable for the Home Button. The only way to disable haptic feedback is in Settings > Sounds & Haptics, scroll down and deselect the 'System Haptics' option.
If that doesn't solve the issues, then we'd recommend bringing in the iPhone for an inspection. A noise like this sounds related to hardware that would require service to resolve: iPhone Repair and Service
To be prepared for your visit, see: Get your iPhone, iPad, or iPod touch ready for service
Locate a service center by selecting your region and searching nearby here: Find Locations
Due to the current conditions around the world, some stores may have limited hours or appointment times. They also may require specific things to visit them (Such as, scheduling an appointment, wearing a mask, calling to check-in, etc.).
Hoping this helps out, take care!