I&#x27;d say good riddance GTK3. I really liked GTK1&#x2F;2, to be honest. I liked the column-based (unixy) file dialogs, detachable menus that you could use as a poor-mans toolbars, and many minor tweaks.<p>The API was always horrendous (it still is!), but as user I liked it so I just coped as a developer anyway.<p>Since the full embrace of gnome, I started to dislike GTK2&#x2F;3 more and more. The stupidity of file dialogs starting in &quot;recents mode&quot; also for save, to name one. Saving a file again? You see restarting at the top directory, just like in windows. Well, it&#x27;s because the file dialogs don&#x27;t have any saved state if you happen to destroy the dialog instance. A tweak that costs literally nothing to implement, but probably &quot;not granma friendly&quot;?<p>GTK3 is also downright slow. The new theming mechanism might be fancy, but objectively I have some UIs that I left at GTK2 intentionally for lower latency.<p>I re-evaluated QT4 as a user. The API and developer tools are just light-years ahead.<p>It&#x27;s unfortunate that I cannot say I like the evolution of QT5.