[Question] Full screen camera app ?

[KaKi87]

Hi,

As a workaround to use an old phone running a non-upgradable Android 9 as a desktop webcam, I considered capturing the screen with a camera app open.

However, camera apps have toolbars, buttons, etc., that I don't need for that purpose, so I went looking for an app that just consists in displaying the camera but with no UI elements around, and didn't find any...

Does anyone know any ?

Thanks