When Solus has kernel 5.4 and seeing 5.3 hasn't even been released yet, its a release candidate you're going to be a couple months away from that.
https://www.phoronix.com/scan.php?page=news_item&px=AMD-Zen2-k10temp-Patches
Either that or you patch and compile the kernel yourself and then do all the rebuilds necessary (nvidia drivers for example, assuming you use them) and this would be unsupported so any issues, you would be on your own.
EDIT:
At least I get some data but not all of it is correct:
nct6798-isa-0290
Adapter: ISA adapter
in0: +0.47 V (min = +0.00 V, max = +1.74 V)
in1: +1.71 V (min = +0.00 V, max = +0.00 V) ALARM
in2: +3.46 V (min = +0.00 V, max = +0.00 V) ALARM
in3: +3.36 V (min = +0.00 V, max = +0.00 V) ALARM
in4: +1.85 V (min = +0.00 V, max = +0.00 V) ALARM
in5: +1.07 V (min = +0.00 V, max = +0.00 V) ALARM
in6: +1.35 V (min = +0.00 V, max = +0.00 V) ALARM
in7: +3.46 V (min = +0.00 V, max = +0.00 V) ALARM
in8: +3.28 V (min = +0.00 V, max = +0.00 V) ALARM
in9: +1.68 V (min = +0.00 V, max = +0.00 V) ALARM
in10: +1.02 V (min = +0.00 V, max = +0.00 V) ALARM
in11: +0.63 V (min = +0.00 V, max = +0.00 V) ALARM
in12: +1.05 V (min = +0.00 V, max = +0.00 V) ALARM
in13: +0.93 V (min = +0.00 V, max = +0.00 V) ALARM
in14: +0.90 V (min = +0.00 V, max = +0.00 V) ALARM
fan1: 1168 RPM (min = 0 RPM)
fan2: 1306 RPM (min = 0 RPM)
fan3: 1265 RPM (min = 0 RPM)
fan4: 703 RPM (min = 0 RPM)
fan5: 0 RPM (min = 0 RPM)
fan6: 3452 RPM (min = 0 RPM)
fan7: 0 RPM (min = 0 RPM)
SYSTIN: +27.5°C sensor = thermistor
CPUTIN: +26.5°C (high = +80.0°C, hyst = +75.0°C) sensor = thermistor
AUXTIN0: +7.0°C sensor = thermistor
AUXTIN1: -61.0°C sensor = thermistor
AUXTIN2: +12.0°C sensor = thermistor
AUXTIN3: +31.0°C sensor = thermistor
SMBUSMASTER 1: +57.0°C (high = +105.0°C, hyst = +95.0°C)
SMBUSMASTER 0: +40.5°C
PCH_CHIP_CPU_MAX_TEMP: +0.0°C
PCH_CHIP_TEMP: +0.0°C
intrusion0: ALARM
intrusion1: ALARM
beep_enable: disabled
iwlwifi-virtual-0
Adapter: Virtual device
temp1: N/A
