Bad UX on To-Do List after page specific bundle

tl; dr: 63.56 % code of app/assets/stylesheets/page_bundles/todos.scss is eliminated in !60784 (merged)

Summary

Bad UX on To-Do List after page specific bundle (!38890 (merged)).

Steps to reproduce

1. Log in to a GitLab instance
2. Access to /dashboard/todos
3. Force-refresh the page
4. Watch out carefully

Example Project

n/a

What is the current bug behavior?

What is the expected correct behavior?

On first rendering, it should be clearly in the flexbox.

Relevant logs and/or screenshots

Output of checks

This bug happens on GitLab.com (13.11-pre and even 13.12-pre).

Possible fixes

n/a