How ti get UI 4.0 Android 12 Beta

I have S21+ , I want to know if keeping display in Vivid mode drains more battery in comparison to natural mode. I have searched on Google and YouTube but didn't find suitable answers. Can anyone advise please 

Why goodlock Application not available in Galaxy Store ?https://youtu.be/HTVtMOiD1uY

Dear All,I would like to have honest opinion regarding change of device. Currently i have Note 10+ (4G) from last 6 months and its working perfectly fine no issues. I am thinking of replacing my Note 10+ with Samsung S21 do you think or suggest this ...

Has anyone received UI 3.1 for Note 10+ (4G) SM-N975/DS