Created attachment 140220 [details]
This is a screenshot of the wrong sum.

SUMMARY
Properties sum up file sizes wrong with symlinks

STEPS TO REPRODUCE
1. Select all files in root
2. Right click and select properties
3. Observe the reported size

OBSERVED RESULT
Total size reported is an unrealistically high number. (128,3 TiB reported in this case)

EXPECTED RESULT
Total size to match what filelight would report. (392,4 GiB in this case)

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
KDE Plasma Version: 5.22.3
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.2
Kernel Version: 5.12.15-arch1-1 (64-bit)
Graphics Platform: X11

ADDITIONAL INFORMATION
I have a 1TB nvme ssd and a 512GB sata hdd, only the ssd has anything and it's about 40% full. The 100+ TiB figure is impossible for this hardware.

Using EndeavourOS