@rickkas7 I would really appreciate your input on this.
I did some more digging and found this Using Fuel Gauge battery efficiently, without Deep Sleep and this Using Fuel Gauge battery efficiently, without Deep Sleep which I think is still really relevant.
I’ve found another reason why I would like to keep the fuel gauge awake. When low SoC is detected, an Electron is usually put in deep sleep. If the battery is recharged while the device is asleep it could take really long for the fuel gauge to realize that the battery is full because it is only on for a really short time.