The vhci-hcd driver is missing in the x86_64 version of package kernel-uek-modules-extra
This means that usbip bind fails...
Note that the aarch64 version does include both usbip-host.ko.xz and vhci-hcd.ko.xz
It seems to effect both OL8 and OL8 (UEK)
https://pkgs.org/download/kernel-uek-modules-extra
You can quickly check this as well using
ls /lib/modules/$(uname -a | cut -d' ' -f3)/kernel/drivers/usb/usbip