SUMMARY
When the application scans a folder, it displays its progress ("%d files, %d total") in a centred label.  This works well when it does it in English but not so well in Polish.  Polish, along with many other languages, has declination.  Moreover, like in a few other languages, numerals >4 are not numbers and must be followed by the genitive case.  In numerals >20 the  lowest digit counts.  Incidentally, the genitive case for "files" has a different length than the nominative case.

STEPS TO REPRODUCE
1.  Scan the home folder.

OBSERVED RESULT
The progress message alternates between "???4 pliki, ??? GB" and "???5 plików, ??? GB", depending on the least significant digit.  The message is centred, so the place where it begins fluctuates in the most annoying way.

EXPECTED RESULT
There should be separate controls for COUNT, FILES, SUBTOTAL, UNITS and they should all have a fixed width:
<INPUT TYPE=NUMBER READONLY NAME=COUNT > <INPUT TYPE=TEXT READONLY NAME=FILES >,
 <INPUT TYPE=NUMBER READONLY NAME=SUBTOTAL > <INPUT TYPE=TEXT READONLY NAME=UNITS >

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: openSUSE Tumbleweed 20230410
(available in About System)
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION
Alternatively, displaying only numbers that end with 0 would do the trick too.  But it would be a hack, of course.