I have a simple problem with placing the phone on the Samsung DeX desktop, as I cannot find the DeX button from the list of notifications shown in the attached image.

when i try connect my phone to monitor by hdmi cable the screen it's come short not full how can fix that ?

When I got android 12 with one ui 4 I have lost  my cortol access with my game through key mapper app like : octopus,  panda mouse pro ... etc  I try many bit still when to run app then open game from in I got forest close 

I want to downgrad framework from android 12 to android 11 how can I do ?

My Samsung Galaxy S10 lite updated One UI 4 OS today. After the update, Panda Mouse Pro app not working on my phone. Please anybody let me know the solution to use the app on my phone