There are some stupid shit in Debian 13 (as of to date) that doesn’t work right out of the box by 2026 because of questionable UX judgements:

Freshly minted user from the installer cannot sudo

I understand it’s good security practice to not leave any attack surface for fresh installations, but this one is just cargo-cult. The first thing you need to do out of any installation (not a live disc) is to sudo and update the software. There’s no good reason to make the administrator who just installed the Linux grant sudo rights to the first user he just created unless you want him to switch to the practice of regularly logging in as root user!

So administrators are forced to do this dance:

su -
adduser {username} sudo
exit

Followed by a logout and relogin, which cannot be easily automated across distributions and installations because each desktop environment have their own logout commands. logout itself is only when you are in text mode.

Debian’s installer should at least have the decency of asking if the first account created by the installer should be granted sudo rights! Good user designs are not supposed to throw obstacles in the most common use cases no matter how justified the developer thinks it is.

apt update does not work out of the box

If you installed Debian from a full DVD (not the minimal version that requires the Internet to download the rest), good luck trying to update the apt package manager:

Who in the right mind would believe an OS installed from the CD should behave differently than it’s downloaded online? WTF?!

You are supposed to edit out the cdrom: source /etc/apt/sources.list:

In most cases you don’t need or want the CD sources after you installed it unless you struggle with Internet bandwidth or don’t want the most updated versions. Here’s a one-liner to do it:

sudo sed -i'.bak' '/cdrom:/d' /etc/apt/sources.list

This wiil create a .bak backup file in case if it deleted more things than you wanted and want to undo it.