Originally Posted by bayou-critter wow, that actually seems to have fixed the problem!! Thanks so much, helpful stranger! You're welcome! can you give me the 30 second explanation of what was happening here? Sorry, I don't understand it myself. I just know weird issues with sudo can happen when the computer's hostname is not in /etc/hosts (from experience with using chroot as part of customizing old Xubuntu live CDs), and that Pop!_OS doesn't update the /etc/hosts entry for the system hostname (the Pop!_OS versions I have experience with did have such entry, but it was hard-coded to "pop-os" and I had to fix it manually).
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