I use File Extension column instead of Type to prevent the cost of parsing file metadata. But this produces very weird results for folders with dots in their names. It's a folder, so Dolphin shouldn't try to extract file extension.
Git commit 629a5d44ddd89defb86c7fe9025735d00d8f0738 by Méven Car. Committed on 10/05/2023 at 14:41. Pushed by meven into branch 'master'. Add a TODO KF6 to solve bug 464722 M +1 -0 src/kitemviews/kfileitemmodel.cpp M +1 -0 src/kitemviews/kfileitemmodelrolesupdater.cpp https://invent.kde.org/system/dolphin/commit/629a5d44ddd89defb86c7fe9025735d00d8f0738
Will be fixed after dolphin starts running under KF6.