Can't get ITead SONOFF Zigbee 3.0 USB Dongle Plus Model “ZBDongle-E” (EFR32MG21 variant) to work with neither ZHA nor zigbee2mqtt

[Hedda]

Sonoff ”ZBDongle-E” (EFR32MG21 variant) discussion on Home Assistant community forum is found here → https://community.home-assistant.io/t/itead-s-sonoff-zigbee-3-0-usb-dongle-plus-v2-model-zbdongle-e-based-on-silicon-labs-efr32mg21-20dbm-radio-mcu-now-sold-for-19-99/442695/

ITead’s “Sonoff Zigbee 3.0 USB Dongle Plus V2” (model "ZBDongle-E") based on Silicon Labs EFR32MG21 +20dBm radio SoC/MCU

FYI, ITead just released a new “ZBDongle-E” adapter as an improved version of their old/previous barebone Silabs EFR32MG21 based Zigbee 3.0 USB adapter from ITead and this new variant is to be sold side-by-side as an alternative to ITead’s TI CC2652P based “Sonoff Zigbee 3.0 USB Dongle Plus” (which is now renamed to “ZBDongle-P”), meaning they will continuously sell both variants and while both type of radio SoC chips practically have the same specifications on paper, they use different Zigbee s…