STEPS TO REPRODUCE
1. Set Settings for Workspace to File View
2. Use Mouse Wheel
The Workspace is not changed.
The Workspace changes.
Linux/KDE Plasma: Kernel 5.6.8-1 MANJARO x86-64
(available in About System)
KDE Plasma Version: 5.18.4
KDE Frameworks Version:
*** This bug has been marked as a duplicate of bug 419867 ***
*** This bug has been marked as a duplicate of bug 419878 ***