Bug 451246

SUMMARY
When changing the display size from 200% scaling to a lower value, the navigation bar in plasma mobile does not scale, instead, it just sort of shrinks in a horizontal, or x-axis fashion, but seems to stay vertically as tall, or close to it. The bar is still fully onscreen, but has a bit of a gap on the side of it now. I assume it will grow to be too big if I go the opposite direction in the scaling.

STEPS TO REPRODUCE
1. Be inside of plasma-mobile default image from manjaro edge/nightly github
2. Inside of the Display scaling settings, change from 200% scaling to something a little lower

OBSERVED RESULT
The navigation bar is scaled as well, but in a way that it doesn't cover all of its expected screen real estate.

EXPECTED RESULT
Bar somehow retains its size despite changes to the overall scaling on the device. Maybe an active scaling inversely proportional to how the user changes it? Like if I subtract 15% from the total scaling in Display Scaling, maybe the bar has a hook to increase its scaling by 15%?

SOFTWARE/OS VERSIONS
Windows: Ew
macOS: N/A
Linux/KDE Plasma: 5.24.2 / Kernel 5.16.12-1-MANJARO-ARM
(available in About System)
KDE Plasma Version: 5.24.2
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Using Pinephone, have virtual keyboard disabled through "virtual input" widget