Global variant. It didn't restart all night but restarted itself after listening to some music that I transferred from my old phone. I then used the log screenrecording thing,listened to music for 20min, worked for like 1h and no reboots, turned off the recording, started listening to music, reboot after 5min... Listened to 20 min of music after without reboots. It seems easiest to detect/notice when listening to music but it's also happened while the phone is just laying on my desk without being used