Describe the bug

On every page the footer stays at the position where it'd be at the bottom of the screen without having scrolled, i.e. when I scroll down the footer stays in the middle of the page.

Steps to reproduce the bug

1. Go to any page of any instance, this one for example.
2. Scroll down a bit.
3. The footer stays at the same place, writing over content in the middle of the page.

For context I am running Firefox ESR 128.8.0.

What's the expected behavior?

When I scroll down I expect the footer to stay at the bottom of the page.

Additional context / screenshot

• I checked that the instance that this was reported on is running the latest git commit, or I can reproduce it locally on the latest git commit