So I factory reset and reinstall all apps manually. Optimized my phone with built-in App Quick Freeze. Overnight (1:30am to 7:30 am,with Data/WIFI turned off) battery drained 2%. Only Phone Manager is running, no other apps trying hard to drain battery.
Btw, Multi-Screen Connect is a great app to connect with PC, you can copy PC text and paste it on the phone.
Bluetooth no problem, connected my gadgets easily.

This phone is my best new phone experience so far.
Wah, I would rather take RM 129 voucher, haha. Is that for realme offcial store only? I bought Samsung Buds 2 a day before GT2 Pro.