WordPress still has some odd little quirks for a mature product. For example, they still have their own code inside /wp-includes/theme-compat/comments.php to alter the look and feel of your comment section.

It can be edited of course, in fact they have a comment inside that code encouraging you to do just that <!-- You can start editing here. -->. But upon each WP update, that file is clobbered with the default and all your changes are gone. So that's fun.

I don't want to have to remember to copy my version back so I just have a cronjob check if the file has changed and it all gets fixed up 🤷🏻‍♂️