Currently, nvidia-info does not show the GPU temperature. You are already grabbing the temperature from the card in the nvidia-info script ( $temp ), but you do not display it. The following change to line 42 in nvidia-smi will display the temperature:
echo -e "${PURPLE}Current PSTATE $pstate , PWR $pwr, FAN $fan, TEMP ${temp}C${NOCOLOR}"
Can you make this change in the official HiveOS release?
Thanks!