SUMMARY Okular should have an option to close itself with the last closed tab. STEPS TO REPRODUCE 1. Open a file with Okular 2. Close the tab (CTRL+W or File > Close) OBSERVED RESULT Okular closes the file then stays opened. EXPECTED RESULT Okular closes itself. SOFTWARE/OS VERSIONS Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.27.11 KDE Frameworks Version: 5.115.0 Qt Version: 5.15.12 ADDITIONAL INFORMATION