Comment 11 for bug 1768609

The user can make a workaround, by using the <filename>.desktop the same as the `WM_CASS` (returned by the command `xprop`).

e.g.
- for Doplin use `dolphin.desktop`
- for JabRef use `org.jabref.gui.JabRefMain.desktop`

source&details: https://askubuntu.com/a/1347954/676490