MattWestb from the Tasmota community pointed out that definitely is just a rebranded version of the standard Tuya TYGWZ-01 Zigbee Smart Life Gateway (TYGWZ01) hardware in a other enclosure so that means that the FCC has more pictures of the board here including those without that metal casing:
https://fccid.io/2ANDL-TYGWZ01
https://zigbeealliance.org/zigbee_products/tuya-smart-gateway/
As can see it has unfortunately not an ESP8266 or ESP32 WiFi SoC but instead that RTL8196E is the WiFi/MCU SoC from Realtek running Linux as its operating system, and underneath that metal housing is only the Zigbee chip from Silicon Labs which is an EFR32 Series 1 (previous generation) thus similar to that what is on the Sonoff ZBBridge by ITead though it features an EFR32 Series 2 (newest generation) of Zigbee SoC.
Regardless it using RTL8196E WiFi/MCU chipset instead of ESP8266/ESP32 means no support for Tasmota.
