Make XWiki take the full browser window height even on small pages?

Hello,

I hope this has not been discussed before, sorry for the duplicate discussion otherwise. I also hope this is the right place to discuss this.

When there is not a lot of contents that fills the page’s height, XWiki does not take the full page and its footer “floats” at the middle of the screen.

I expect the footer to be at the bottom of the browser window instead. This can be achieved by adding this CSS (one can use the Firefox style editor and add a new stylesheet with this content to try out):

html, body, #xwikimaincontainer {
  height: 100%;
}

#xwikimaincontainerinner {
  height: 100%;
  display: flex;
  flex-direction: column;
}

#contentcontainer {
  flex: 1;
}

Is it a feature or a bug?
If it is an improvement that could be made, should I open a bug report?

Have a nice day!

ps: I wanted to embed screenshots but I’m not allowed to do that as a new user.