Bug 488264

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SUMMARY
The last few days I remarked vanishing konsole windows from virtual desks 2-8 by chance
which were all put to virtual desk 1 ... the shrinking of konsole windows still happened
(more slowly and in a random fashion - but it was not just gaps between adjacent windows),
then suddenly the konsole (all using login shell) directories were all reset to "~" ... and
thereafter no program was respawned after reboot - not even on virtual desk 1.

So storing sizes/positions/state of programs and restoring that situation after reboot
was completely broken in 3 steps - and the shrinking of konsole windows was more
random and happen slowly - but this bug still exists.
So with 6.0.5 nothing was fixed but all got a total mess without function.
And the 'divide et impera' bug management was not a good idea
(diciding shrinking and displacer etc.).
Currently, Wayland and X11 are the same - nothing can be "stored on logout and
restored on boot" - so session saving is no longer available with KDE neon after
bug fixing ... and the next version 6.1 is announced as feature update ...

I am shocked that bugs so easily to see were not spotted in tests but rolled out.
And the worsening in several steps should imply that the entire code should be
looked through to really fix this manyfold broken code.

Thus Wayland broken and X11 annoying was a normal bug - now I can not
work (my workflow requires a lot of windows [alone more than 72 windows for
konsole alone plus lots of windows with okular etc.] on special places
for 8 virtual desks which worked perfektly with KDE5) and thus it is
major for me and should regarded that way by developers if KDE should
be used on workstations ...

STEPS TO REPRODUCE
1. updating KDE neon 6.0.5 after 07.06.2024
2. opening several windows and selecting session save on logout
3. rebooting ...  :(

OBSERVED RESULT
The entire session is lost - nothing is restored (no Firefox, Thunderbird,
konsole, okular ...).

EXPECTED RESULT
Session is properly restored with exact sizes/positions/states as
it was when logging off

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: KDE neon (User Edition - fully updated - no pakage problems noted)
(available in About this System)
KDE Plasma Version: 6.0.5
KDE Frameworks Version: 6.2.0
Qt Version: 6.7.0

Linux: 6.8.12-060812 (Ubuntu PPA - worked with that kernel before)
Mesa: Mesa 24.0.8 (kisak-mesa PPA - worked with that release before)
Plattform X11 (but also Wayland, which was totally broken with 6.0.0!)

ADDITIONAL INFORMATION
CPU: 12 × AMD Ryzen 5 3600 6-Core Processor (Zen 2)
Memory: 15,5 GiB of RAM
Graphic Card: AMD Radeon RX 5700 XT (RDNA 1 / Navi 10)