Some very vocal #LibreOffice devs consider that client-side window decorations (for example #GTK HeaderBar kind of things) are "NOT a #UX #design issue", and that it's all about the burden of maintaining that across different OSes/platforms.

Yeah… I might buy their argument if LibreOffice had the guts to actually commit to only one (or two) UI layouts and toolkits, instead of maintaining *seven* UI layout choices, to begin with 🙄️
https://bugs.documentfoundation.org/show_bug.cgi?id=113388#c25