The UX392FN UART Driver is explained here. This is also a Intel(R) Serial IO UART Host Controller which you will find in the ZenBook computer from Asus. These are the same that you will find in the VivoBook 15 F512DA UART as well as the VivoBook 17 F712FA UART. The UART is pretty much standard when it comes to Asus and you can search this website for more UART drivers. Note the files for this listed below as this Windows 10 64 bit driver was released in May 2019.
ASUS ZenBook S13 UX392FN UART Driver Win 10
The UX392FN UART driver can be downloaded here. You will note that the I/O UART device in the Asus is much the same as others. Note that you could use this driver on all the version from the Asus Zenbook to the Asus VivoBook. You can find these drivers shown below. Click on the .inf file as shown below. You will need to right-click on the .inf file and then click on install. You can also click on the install file or you can install the UART driver from the device manager.
ZenBook S13 UX392FN UART Driver