@spockfish licenses Ropieee to Metrum Acoustics, but if there is no Linux driver, there is probably nothing he, they, or you, can do (unless you happen to know how to write a driver).
Your best bet if you want to be 100% all the features are supported is probably one of the cheap chinese boxes. USB output likely won’t be as clean as on a Sonore device or a USBridge, but whether that’s audible is debatable.
Look this way for pointers.
Other than that, what has already been suggested - i.e, get a linux device, either raspberry or USBridge and see if it works - stands. The advantage of the Raspberry is that you could always add a SPDIF board if USB doesn’t work out, or do something else with it entirely, while the USBridge is of course cleaner, usb-wise. So it kinda depends on how lucky you’re feeling 