How to change edge panel light change in s20 plus ?

[yashpatel11]

Help 

[SuRRealSaGar]

https://www.nirmaltv.com/2021/01/30/enable-edge-lighting-on-samsung-galaxy-s21-and-s21-ultra/

[Sidhabhi]

Go to settings>notifications>brief pop up

https://r2.community.samsung.com/t5/Galaxy-S/ANDROID11-UI3-0-CHANGES-PART-2/td-p/6850665