Created attachment 110121 [details] screenshot See the screenshot please. Battery applet should not show the path to binary file.
The application tells us what it wants to have shown here. (Ideally it just sends us the desktop file name, the battery monitor does a KService lookup even I think), re-assigning to Falkon
That's QtWebEngine (or rather Chromium), it uses argv[0] to show there. If you start it as just "falkon" instead of "/usr/bin/falkon" you should see "falkon" there.
Apparently this issue is no longer relevant. Qupzilla was renamed to Falkon and I can't reproduce this issue with it or any other app that according to the battery applet inhibits the power management. Operating System: Arch Linux KDE Plasma Version: 5.17.3 KDE Frameworks Version: 5.64.0 Qt Version: 5.13.2