EOS Welcome app has "Pacdiff & Meld". I read the arch wiki and am still unsure how to use "Pacdiff & Meld". Would someone please explain what a user is supposed to do with EOS "Pacdiff & Meld"?

[BONK]

Pacnew files - some common-sense advice

So you just got a shiny new something.pacnew file. You get these when a system file has been modified from the upstream default. If the file has been modified, it is assumed (and rightly so) that there’s a reason it was modified, and so instead of overwriting the file with the upstream defaults a .pacnew file is created. Here’s some common-sense advice: Before doing anything, make a backup copy of both the original file and the pacnew file. So, using passwd as an example, you’d have 2 copies:…