Configure NIC
This is required to download OS X / macOS via recoveryOS! This is also how you provide Internet Access to the guest machine by sharing.
Using the Default Network
Select the Add Hardware button and choose the Network category on the left-hand side.
Choose the correct Network Model for your Guest OS
For macOS Big Sur (11+) and newer: Use virtio.
For macOS Catalina (10.15) Use vmxnet3.
Once you have selected the correct model, you can continue to the next step.