Hello Eric Elmendorf,
Welcome to Microsoft Community.
Although the "polycom EagleEye IV USB camera" you mentioned here was not developed by Microsoft, I am trying to find the corresponding driver for you.
I found the following link for you:
https://www.poly.com/us/en/support/products/video-conferencing/enterprise-cameras/eagleeye-iv-usb****
This is the EagleEye IV USB camera driver download address, but I am not sure which driver you need.
Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate and safe information. Watch out for ads on the site that may advertise products frequently classified as PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.
Microsoft provides no assurances and/or warranties, implied or otherwise, and is not responsible for the information you receive from the third-party linked sites or any support related to technology.
Since this is not a Microsoft device, I may not know much about it, but on this page, I see the "Contact support" option, so I think if you need a driver for a particular feature, it is a good option to contact the relevant support person directly.
Best regards,
Mitchell - | Microsoft community support expert from MSFT