On the ROCK 5B+, I am getting the following error at boot
[ 12.361648] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 12.389297] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 12.390688] cfg80211: Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06c7248db18c600'
[ 12.392699] cfg80211: loaded regulatory.db is malformed or signature is missing/invalid
I believe this is the cause of being unable to set the regulatory region for WiFi.
Running
sudo iw reg get
returns
global
country 00: DFS-UNSET
even after running
sudo iw reg set GB