VIA Labs announced the launch of the VIA Labs VL830 USB4 Endpoint Device. USB4 is a significant improvement to the USB architecture, allowing for the coexistence of several data and display protocols ... VIA Labs Announces Launch of USB4 Device Silicon
There is an error in your link to VIA. Here is the correct link: https://www.via-labs.com/product_show.php?id=114
All of these non native controllers are non standard proprietary trash, good luck ever getting this to handshake with another USB 4.0 device without dropouts and reduced speeds whenever actual USB 4.0 devices come out.