I'm experiencing problems with the sound on my laptop's speakers (AKG). I'm currently using live boot and I haven't installed Zorin yet. The sound on any other computer that I live boot Zorin on seems to work alright but not this one. The drivers I'm currently using for the speakers are:
Zorin detects these speakers as "sof-hda-dsp". Over-amplification and raising the system sound didn't do anything. So for now, I'm using a workaround with my external speaker (Sony SRS-HG1) via USB. However, that takes up a USB-A slot and I only have two.
"I had similar problem on my Ubuntu 18.04 - sound stopped working on built-in speaker and audio jack. It was working only on USB headset."
If the ~/.pulse file is not present, you can ignore trying to remove it.
The purpose of removing it is to remove any User Custom Configuration files related to Pulseaudio.
You may not have pavucontrol installed, as you are on the Zorin Trial, not the installed desktop.