I've successfully installed OpenWRT 22.03.3 on a GL-AR300M (NAND version).
At the moment I'm about to configure luci-app-statistics, specially to display any thermal information.
There are no /sys/class/thermal/*/temp files, /sys/class/thermal is an empty directory.
Does this indicate, that there is no thermal information available, or do I have to install further packages (e.g. there is a package kmod-thermal)?