Purge the repository: sudo apt install ppa-purge sudo ppa-purge system76/pop This will remove all conflicts/depends/packages/changes done by the PPA.

Many people are also very wary of PPAs because they can contain anything. While a PPA might say it contains “Music Player”, the owner of the PPA can put anything in it. The deb installed from a PPA has root on your system when installed, so can do anything - good or bad.

In addition, PPAs are awful for software discovery. Average users have no idea what a PPA is, nor how to configure or install software from it. Part of the point of snap is to make software discovery easier. We can put new software in the “Editor’s Picks” in Ubuntu Software then people will discover and install it. Having software in a random PPA somewhere online is only usable by experts. Normal users have no visibility to it.