Maybe it is nightly build and will be improved. Just information.
Leeco Lemax2 (LEX821) Android10 20200920.153447
LED notifacation does not work. For Charging, it is working.
For Google Map, I set language as Japanese in Goole Application and Chrome.
But English locale is not changed to Japanese.
Display is ok. It is changed to Japanese, such as city name, river name, strain station name etc.
I am not sure it is caused by Google Map or Open Gapps.