Here it is;
Thank you; that confirms you have one sound sink device, so the thought that the sound might be being sent to another device can be dropped.
When you play audio in any application, it should appear on the Playback Tab of that window, where you can adjust its volume.
Do you see such applications on the Playback Tab?
Does the volume indicator line vary with the sound being produced by the app.?
BTW ...... you should delete the ~/.asoundrc file ..... or if necessary replace it by one with the content for use by PulseAudio.
I suggest deleting it while doing tests first, and if you have no sound try adding it again but using the details for use with PulseAudio.