I am used to recording with OBS both on Fedora and Windows.
On these plate-forms I can hide the window of OBS, and start and stop recording of the entire screen using keyboard shortcuts.
That way the window of OBS never appears on my video.
I tried to do the same on Ubuntu but, unfortunately, I cannot start and stop the recording while the OBS window is not visible on the screen. It means that I have to trim head and queue of my video to suppress the part where the OBS windows appears.
Is there a mean to do the same way I use on Fedora and Windows ?