I ran for i in `find /lib/modules/5.3.18-59.19-default/ -name \*.ko.xz`; do
test `modinfo -F signer ${i} | wc -l` -eq 0 && echo ${i} ; done

Here is a list of the modules which have not been signed...

/lib/modules/5.3.18-59.19-default/kernel/drivers/hwmon/coretemp.ko.xz
/lib/modules/5.3.18-59.19-default/kernel/drivers/hwmon/hwmon-vid.ko.xz
/lib/modules/5.3.18-59.19-default/kernel/drivers/hwmon/jc42.ko.xz
/lib/modules/5.3.18-59.19-default/kernel/drivers/hwmon/nct6775.ko.xz
/lib/modules/5.3.18-59.19-default/kernel/drivers/hwmon/asus_atk0110.ko.xz
/lib/modules/5.3.18-59.19-default/kernel/drivers/hwmon/w83627hf.ko.xz
/lib/modules/5.3.18-59.19-default/kernel/drivers/platform/x86/acer-wireless.ko.xz
/lib/modules/5.3.18-59.19-default/kernel/drivers/platform/x86/acerhdf.ko.xz
/lib/modules/5.3.18-59.19-default/kernel/drivers/clk/clk-cs2000-cp.ko.xz


Half of these appear to be "This package contains additional modules not
supported by SUSE.", even though they are part of the pristine kernel source
and not part of staging.