Hello and welcome to Ubuntu Discourse. Also, just because Pop!_OS is based upon Ubuntu, don’t mean it fits for this discourse, because this is off-topic.
You can get support from System76 (Which it runs Pop!_OS) in GitHub site about Pop!_OS issues. Here it is. ⮯
Most importantly, which I don't wanna tell you this. 😟
Please note Ubuntu Discourse is not a place for other third-party Distros or other Operating Systems that aren’t about Ubuntu or its flavors.
And be advised it can be flagged as off-topic and/or closed approximately.
Pop!_OS is obviously based on Ubuntu, which it still counts as Ubuntu, but not titled Ubuntu (Like: Ubuntu MATE, Ubuntu Studio, Kubuntu, Xubuntu, Lubuntu, or Ubuntu Budgie). So, it’s of course not like it’s allowed to be in a discussion or Launchpad. 
Sure, it’s not really Ubuntu, but it’s based on it unlike Linux Mint. So yea, talking about those Third party Distros like that here can be flagged if possible.