SUMMARY Since version 24.8.0 dolphin ignores settings set by qt6ct, which is used to set defaults for qt apps when running them outside of kde. Settings like single click to open files/folders, and the theme are ignored, looks like they're being set to default value. Changing the theme gives a strange mix of colors, but doesn't change it like it soould. The toolbar button layout is preserved. I run sway and have observed this only in dolphin, other kde applications respect the set theme, not sure about other settings. STEPS TO REPRODUCE 1. Set files to open with a single click in qt6ct, when running outside kde. 2. Set QT_QPA_PLATFORMTHEME=qt6ct 3. Run dolphin. 4. The settings are ignored.
Very similar to https://bugs.kde.org/show_bug.cgi?id=492593