SUMMARY qgis does not run on KDE/Qt5 STEPS TO REPRODUCE 1. Install qgis from https://www.qgis.org/en/site/forusers/alldownloads.html 2. Start it from the command line 3. It doesn't run OBSERVED RESULT The following error is reported from command line: /usr/bin/qgis.bin: symbol lookup error: /lib/libqgis_3d.so.3.20.2: undefined symbol: _ZN10Qt3DExtras10Qt3DWindowC1EP7QScreen, version Qt_5 EXPECTED RESULT qgis will run as expected SOFTWARE/OS VERSIONS Operating System: KDE neon 5.22 KDE Plasma Version: 5.22.4 KDE Frameworks Version: 5.85.0 Qt Version: 5.15.3 Kernel Version: 5.11.0-27-generic (64-bit) Graphics Platform: X11 Processors: 8 × Intel® Core™ i7-8565U CPU @ 1.80GHz Memory: 15.3 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 620
This has nothing to do with Plasma.
Specifically, the problem is in the app itself.