I love having no task assigned. Means I finally have time to do code maintenance. Upgrading dependencies, fixing bugs (there are always some), clearing TODOs left in code, improving performance, improving dev tooling or monitoring configuration, cleaning up unused code, improving documentation, ...

And the best part is that since it's not an assigned task, nobody is waiting for it, so I'm under zero pressure.

Sadly it doesn't happen that much as we're always pushing for more new features out.

In SCRUM though if that stuff isn't in the sprint you'll probably get backlash from QAs as it needs testing etc, or questioned why you're bringing in that stuff.

Easier to sit back and not do anything.