I'd suggest to first try how it behaves after disabling the antimalware service you mention, as that type of software is known to 'interfere' with screenshot software. Or maybe add it to the white-list if that's possible.

It's difficult with a batch command that program to maximize when resident in the tray icon !

-Contro (August 18, 2023, 01:16 PM)

Usually, to maximize a program from the system tray, is a feature of the program itself, not by blasting a command at it and expecting it to do as you desire.
If PBOL doesn't support that, it won't work (period).

I see a lot of this kind of devices, where they usually have an ESP8266/ESP8285 or ESP32 chip (with WiFi support, and some ESP32 even use BLe), but they also have (at least) a relay to switch the output and often a sensor to measure power consumption. I've never seen one with an RPi, though with the recent RP2040 that might change, as that chip is targetting the IoT market. But it's not nearly as capable as a full-fledged RPi, more in the ESP/STM region.