SUMMARY
If I configure the "process" section of the system monitor to show "login" as a column (the user name), the column is always empty, even though UID has the correct number.

STEPS TO REPRODUCE
1. Open system monitor.
2. Go to section "Processes" in the panel at the left.
3. Click the three dots menu, select "Configure columns...", find entry "Login", and set it to "Text Only".

OBSERVED RESULT
Column is empty for all processes.

EXPECTED RESULT
Should show the user name like it says in the config.

SOFTWARE/OS VERSIONS
Operating System: Debian GNU/Linux 12
KDE Plasma Version: 5.27.2
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Kernel Version: 6.1.0-5-amd64 (64-bit)
Graphics Platform: X11
Processors: 20 × 12th Gen Intel® Core™ i7-12700H
Memory: 62.6 GiB of RAM
Graphics Processor: Mesa Intel® Graphics
Manufacturer: SLIMBOOK
Product Name: Executive
ADDITIONAL INFORMATION