Problems with destruction
There seems to be a problem when destructing the icons. Every time the desktop has to be refreshed (like when a file or folder is deleted or created), mutter outputs this error (repeated several times, exactly once per icon in the desktop):
(gnome-shell.bin:1348): Gjs-CRITICAL **: 17:01:05.735: Attempting to call back into JSAPI during the sweeping phase of GC. This is most likely caused by not destroying a Clutter actor or Gtk+ widget with ::destroy signals connected, but can also be caused by using the destroy(), dispose(), or remove() vfuncs. Because it would crash the application, it has been blocked and the JS callback not invoked.
(gnome-shell.bin:1348): Gjs-CRITICAL **: 17:01:05.735: The offending signal was destroy on StBin 0x5625dcb5f0c0. == Stack trace for context 0x5625d9dac4b0 ==