> It is not clear to me what that does, but it looks like it displays
> the diagnostic on a different screen line, not on the line to which
> the diagnostic belongs?
>

Yes exactly. It shows diagnostics on different screen lines, based on
where space is available.


> That is strange to hear, because it doesn't allow to have an overview
> of the diagnostics at a glance.
>

Yeah I'm not advocating for this behavior to be included in emacs, just
sharing my experience.