SUMMARY
Using 140 or 145 as fractional scaling value (Wich are the most appropriate values for my 1080 14" screen) cause flickering thin lines below the panel, most noticeably on the task manager. With 145 the lines might appear anywhere on the screen. Lower or higher values do not produce these artifacts 

STEPS TO REPRODUCE
1. Set scaling to the above values
2. Use the desktop for a bit, open apps or switch between em

OBSERVED RESULT
The lines

EXPECTED RESULT
No lines

SOFTWARE/OS VERSIONS
Arch Linux