This is what Adwaita Qt does [1] and it fixes the popup text being elided in Krita's filter popup with D25739

[1] https://github.com/FedoraQt/adwaita-qt/blob/master/style/adwaitastyle.cpp#L2856

5.17?

• Other comboboxes look unchanged because iirc it only uses that size hint for the popup contents in SH_ComboBoxPopup mode, not in the default case we have in Breeze usually

Before