Support for Smartchip WiFi got added with 20220323 nightly.
All 3 modules are included in system now:
S-9083
S-9188
RICHV300
The driver is default Disabled and if the SDIO VID:PID 02E7:9086 is found it’s possible to choose the correct driver matching with the Smartchip assembled in CoreELEC-Settings hardware tab.