Created attachment 152628 [details]
Notification Pop-Ups

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***


STEPS TO REPRODUCE
1. mount nfs point with several folders without having even read write (nfs4 only??)
2. try opening application-starter or any other program pinned to the taskbar
3. await several notifications, that it was not able to open the mountpoint
4. then it works again

OBSERVED RESULT
- fan speed increases (due to higher CPU load?)
- Dolphin freezes for a few seconds
- Taskbar, Application Starter, Widgets etc. freeze until...
- ...several notifications pop-up, that the filesystem does not respond.

EXPECTED RESULT
- no freeze while opening mountpoint with several restricted access folders
- immediate opening of the mountpoint
(- maybe even hide the folders, the user does not have access to?)

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma:  Fedora 36
(available in About System)
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6

ADDITIONAL INFORMATION
maybe similar to 412724