Hi Wesley Wiley,
Thank you for reaching Microsoft Community.
May i know how are you accessing Zoom? Is it through the desktop client/app or just through the web browser? If through the browser, may I know which browser are you using?
When did this issue started and were there any changes made on the device before this happened?
Have you tried also using other video conferencing apps like Teams to test if the same issue also occurs?
It is very unlikely to have a Bluetooth device disconnects only when doing a Zoom call especially that it only occurs on one of the Bluetooth devices connected but kindly try first checking for the Surface drivers' health through the Surface app and run the Surface Diagnostic Toolkit on the device to run some system checks and repairs. After which, make sure also that the device is up to date by checking for updates in Windows Settings > Windows Updates and make sure all updates are installed including Optional updates. See this page for reference: Find out which Surface model you have - Microsoft Support
Try also doing these steps below then see if issue persists;
Open Device Manager
Expand Bluetooth
Double-click on the Bluetooth Radio adapter of the device
Go to it Power Management tab
Uncheck the box next to the Allow the computer to turn off this device to save power option
Click OK
Do the same steps for the Bluetooth Low Energy GATT compliant device under Human Interface devices
Let me know how it goes.
Kind regards,
Marrion