How to use portrait mode in SnapChat on iPhone?

hey there so I'm using Snapchat and I open My Control Center and here is some new setting which is like some video effects which you can apply to Snapchat or yeah so it says you can enable portrait mode on or off so um yeah you can just do that and then if you go back to your Snapchat and then you can see that this is enabled so yeah then you will just enable the portrait mode which means that all the background will be a bit blurred as you can see and now if you just go back and then I just disable that then the background seems not blurred so yeah that's that's the process you can now do it in Snapchat or like any other camera uh app or your camera app or like that so it's pretty cool