Like Windows, Ubuntu is installed by default on many computers. In my university, all the computers have a dual boot Ubuntu Windows.

The argument that Debian doesn’t have the latest packages is only valid for stable repository, right?

Wouldn’t Debian with unstable or testing repo be better than Linux Mint?

I don’t like Ubuntu because of their forcing method to use Snap package manager.

I don’t like Manjaro because of its poor dependency management. Many dependencies are not declared, so that if you update a package, it won’t update the undeclared dependency and it won’t work any longer. You have to update everything or nothing, and when disk space becomes low, updating everything at once is impossible.

A better advice would be: Don’t install updates when you have a class to attend and assignments to do. There is always a risk of breaking something on any OS.