SUMMARY This makes it unable to handle geo:// and worldwind:// accordingly. STEPS TO REPRODUCE 1. Install Marble's flatpak package OBSERVED RESULT The .desktop files aren't installed EXPECTED RESULT The .desktop files are installed SOFTWARE/OS VERSIONS Operating System: NixOS 25.11 KDE Plasma Version: 6.4.5 KDE Frameworks Version: 6.18.0 Qt Version: 6.9.2 Kernel Version: 6.17.0-cachyos (64-bit) Graphics Platform: Wayland Processors: 32 × AMD Ryzen 9 5950X 16-Core Processor Memory: 64 ГиБ of RAM (62.7 ГиБ usable) Graphics Processor: AMD Radeon RX 6400 Manufacturer: Micro-Star International Co., Ltd. Product Name: MS-7C94 System Version: 1.0 ADDITIONAL INFORMATION I see two possible fixes: 1. Rename them to org.kde.marble.geo.desktop and org.kde.marble.worldwind.desktop accordingly 2. Get rid of them and just handle everything via org.kde.marble.desktop Personally I like the second option more.
A possibly relevant merge request was started @ https://invent.kde.org/education/marble/-/merge_requests/179