"Ubuntu, Debian, Red Hat Enterprise Linux, Fedora, Linux Mint, SUSE Linux Enterprise, CentOS, Manjaro, elementary OS, Gentoo, Oracle Linux, and Pop!_OS" ~--Google's AI.
You jest but I think it can happen. Grok could be responsible for tagging the output of all the other AI's as "Potential Misinformation, Disinformation per the Ministry of Truth".
The data source seems pretty obvious here. It doesn't know much about atop, but your question has led it to believe that it's something available on Linux distros, so it spat out a likely list of Linux distros based on the weighted average of linux distros listed by other projects in its training set.
I am not aware of any that install it by default.