If you want to adding an additional webcam so you can do it add in input camera setting that will do it attach with conference app for video streaming. This camera streaming software can easily available on internet.
after connecting the webcams to the computer, use DriverPack to find the right driver. Here you can quickly download Gateway laptop drivers https://driverpack.io/en/laptops/gateway or download other drivers. DriverPack has a VERY large library of drivers. But if suddenly there is something missing in it, he knows how to search for them on the Internet using the DevID service and install them.