bug#62164: 29.0.60; ediff behaves poorly by default on tiling window managers

[Ruijie Yu]

Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" 
<bug-gnu-emacs@gnu.org> writes:

>> ediff defaults to a multiframe UI on graphical displays. [...]
>>
>> [...] perhaps there's some way to set this hint through PGTK?
>
> No, Wayland doesn't provide any of this, unless you use a protocol that
> is exclusive to GNOME Shell.

This is unfortunate.  FTR, I had to configure Sway to make the window
float by default:

--8<---------------cut here---------------start------------->8---
# ediff should always be floating
for_window [title="Ediff"] {
    floating enable
    gap 0
}
--8<---------------cut here---------------end--------------->8---

--
Best,


RY