Last time I checked my charging indicator was always off.
Also, the fan is not nearly silent. Even when setting the cooling to ‘quiet’ in BIOS, then setting windows power consumption to low by restricting CPU frequency to 400MHz, the CPU temperature hovers around 30 degrees Celsius, but the fan on idle is still considerably louder than the fan on my 13’’ 2015 MBP Retina at full speed!
I’m not sure why they made it possible to switch the fan off in P2 (which I also have), but not in P2 Max. The CPU is the same, the P2 Max is larger and has more options for passive cooling, probably they cool down something else like NVME drive for example. Still, having the device on silent like P2 would have been nice. I planned to use this device on vacations mainly, but with this fan being loud my wife will complain 100%.