Remembering last folder: Recent
So I see the last folder is now remembered. That's nice, except if the last location was Recent. In that case, it will restore the directory where that file was instead. Which is not great if that file was a screenshot: it will end up at the very end of the list (and the screenshots dir can grow huge).
So the common case of sending multiple screenshots becomes harder: instead of having all of them at the top of recent files you either have to switch to recents manually every time, or scroll to the bottom of (potentially huge) xdg-pictures/Screenshots/
Now, sort order can be changed, but it's global, so it's not an option here.
I don't know if it's possible to do this with GtkFileChooserDialog, but possibly something to think about for a future chooser. Opening an issue here as the change was here.