Bootcamp WindowsSupport Folder missing Network Adapter Drivers

I am attempting to setup a windows 10 bootcamp on an external SSD using a vm to get the WindowsSupport folder created by bootcamp assistant onto the drive and I have managed to boot it up and log in, however upon running the bootcamp setup on the windows installation to install the drivers, I found that the folder is missing the drivers for wireless network adapter and so I cannot connect to the internet on the Windows installation. I have tried to redownload the folder but it is still missing the drivers, I also tried to find the correct drivers and install them manually using the device manager but nothing has worked, any solutions would be appreciated!

I am on a 2019 iMac running Catalina (10.15.7) if that helps.

This is the drivers folder for Broadcom, where I believe the missing driver should be (Path: WindowsSupport/Bootcamp/Drivers/Broadcom/)