Client side decorations?

[Jean-Marc Lasgouttes]

Le 14/05/2023 à 15:18, lorenzobertini97 at gmail.com a écrit :
>> It does not use server-side decorations with ubuntu. The thing is a
>> complete mystery to me.
> 
> Ubuntu is still defaulting to X11, and when run under that server
> mutter should draw decorations. What platform is Qt selecting?

I have a wayland session. Since Ubuntu 23.04, Qt applications start as 
wayland by default (before that, X11 was selected).

The consequence is that by default now, LyX has ugly decorations with 
Ubuntu.

What is the distribution that you use?

JMarc