I can confirm this is working in ubuntu 20.10, kernel 5.8.0-29 without any patching of the kernel.
I have a question though, was anyone able to change the sample rate to 96Khz? HX Stomp is capable of this and is Class 1 compliant so the drivers should be fine. But changing the sample rate in Jack Audio Connection Kit produces no change (the gui still shows 48KHz even after restarting the client).