Delete the last frame of a video

[mean]

The problem with audio is that you dont see them on the main UI
I.e. if it does not do what you want for video, you see it

IF it is the 2nd audio track, you have to go into the audio menu to check if it's ok or not

Similarily, the loaded video might not have audio at all

[eumagga0x2a]

I agree that there is no immediately obvious solution for audio. The best-effort solution would probably save audio encoder settings only if there is either only a single track or multiple tracks using exactly the same settings and revert to the copy mode if any of these conditions is not met. It would fail gracefully if a video without an audio track is loaded.