ffmpeg: how to add sound recording to video?

Question

Windows

I record from the screen with the following console command:

ffmpeg.exe -y -f gdigrab -i desktop -pix_fmt yuv420p record.mp4

But at the output I get a video without sound .
It is necessary that the sound is also recorded from the default audio device.

I found examples for linux, but under Windows I
also found examples for Windows, but you must explicitly specify the audio device there.
I plan to run this script on other PCs, and their devices may differ.