Bug 487423

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SUMMARY
After the update on Wed., 22.05.2024, most KDE icons e.g. for Application Launcher, Sleep, Restart,
Shutdown, Konsole, System etc. are gone - while e.g. Synaptic Package Manager has now a new Icon
(low res - ugly - the former was fitting to the rest).
Changing icons is always a bad idea when those icons are totally different like with the new one.
Was this the KDE Frameworks 6.2.0 upgrade which went totally wrong?
KDE Plasma 6.0.5 with hopefully clearing my most enerving problems of KDE 6 is still not rolled out ...

STEPS TO REPRODUCE
1. Having former state where all icons were on place
2. making an update
3. rebooting

OBSERVED RESULT
Most icons are absent - other may be totally different.
This is a mess which should have been spotted before rollout.

EXPECTED RESULT
All icons are there - maybe with higher resolution and better
quality - this is no upgrade but a downgrade - as even the new icon
I spotted is of much worse quality than the old one.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma:   Linux KDE neon User version being updated from start version KDE neon 5.27.2
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.0
Kernel Version: 6.8.10-060810-generic (64-bit)  [from Ubuntu PPA]
Graphics Platform: X11 (Plasma is a mess with KDE 6.0.4 - see bug reports)

ADDITIONAL INFORMATION
12 × AMD Ryzen 5 3600 6-Core Processor
15,5 GiB of RAM
AMD Radeon RX 5700 XT
~~
System is completely updated without any package problems.
Most things are done via synaptics - as the package manger Discover
does not show details about updates, shows packages with not fulfilled
dependencies (like the eneving UEFI dbx 238 -> 371 which is just stuck)
but is used form time to time to make sure that all things are there.
So I have the feeling KDE does not really using the Debian installation
but has some strange extensions ... but this is another bug report - just
mentioned if this could cause such a mess ... which would still a bug!
/ is only 72% used ...