Bug 448552

SUMMARY
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When trialing the new 5.24 on KDE Neon untsable with highlight changed settings on I noticed that the virtual desktop KCM was highlighted even though this was  fresh VM with no changes. I hit the defaults button and noticed that this sets a single virtual desktop but number of rows to 2. This means that when you click away the number of rows is changed back to 1 as there is onyl a single desktop and the highlight function correctly see this as a change.

The default setting should be made consistent so that the user isn't isn't alerted to a change they didn't make. This should probably mean setting the default number of rows to 1 to match with the default number of desktops. The other option would be to default to 2 desktops over 2 rows by default if having multiple virtual desktops is a desirable default setting.
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STEPS TO REPRODUCE
1. Starting with a fresh install
2. Select highlight changed settings in System settings
3. Navigate to virtual desktop kcm see highlight
4. Hit defaults (which is 1 virtual desktpop and 2 rows) then apply
5. Navigate to different screent then back 

OBSERVED RESULT
The number of rows has been set back to 1 and the setting is now highlighted as changed again

EXPECTED RESULT
When I reset to default no setting should be highlighted as changed for that screen

SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.24.80
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.3
Kernel Version: 5.11.0-46-generic (64-bit)
Graphics Platform: X11
Processor: 1 × AMD Ryzen 5 3600 6-Core Processor
Memory: 3.8 GiB of RAM
Graphics Processor: SVGA3D; build: RELEASE; LLVM;

ADDITIONAL INFORMATION
Note this also seems to be the case on my Endeavor OS 5.23 install as well.