Maybe somebody should remind UA and MOTU and Focusrite (and Intel, Asus, MSI, and Gigabyte too) that you can plug Thunderbolt devices into a USB-C connector and those are starting to show up on Windows motherboards.
Not all USB-C ports are Thunderbolt- compatible. Sometimes the PC or mobo manufacturer will include the reassuring little lightening bolt icon above the port, which I wish they all did, but they don't all do that. In which cases you have to drill into the manual or manufacturer website, perhaps supplemented by support. Again - not a great way to sell billions of these configurations.
So why don't I just kick over to the UA USB interface? Word on the virtual street is that the USB version is probably a dead-end and won't be supported all that long.