SUMMARY
Open File Manager in Konsole does nothing. Does not open dolphin. 'Open Terminal Here' in dolphin does work and opens Konsole to the correct directory.


STEPS TO REPRODUCE
1.  Open Konsole
2. Right click and then click 'Open File Manager'

OBSERVED RESULT
- Nothing happens
   - When running konsole in  the another terminal and then clicking on the 'Open File Manager' the terminal from which Konsole was opened from has this event logged: 

kf.service.services: KApplicationTrader: mimeType "x-scheme-handler/file" not found


EXPECTED RESULT
Opens the dolphin file manager to the respective directory that Konsole is currently in.

SOFTWARE/OS VERSIONS
Linux: KDE Neon Testing Edition 
(available in About System)
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.106.0
Qt Version: 5.15.9
Graphics Platform: Wayland

ADDITIONAL INFORMATION
Hardware: AMD Ryzen 7 5800H with Radeon Graphics
- Underline Links in the mouse section is enabled in Konsole, for the file thumbnail generation feature.