You can back up Windows Camera setttings using this method. This will help you restore these setting should you format your computer.

Fix Camera App 0xa00f4240 0x800703e3, 0x80070057, 0x80131502, 0x80004003, etc. errors in Windows 11/10 PC by following these suggestions.

In the major update coming later this year, Windows 11 will finally stop throwing errors when multiple apps use your camera at the same time.