The Joplin AppImage that is currently available depends on the FUSE2 interface, which is both deprecated and unmaintained. This causes security issues because it forces users to install fuse2. In addition, some modern distributions, such as Fedora 44, no longer support fuse2.

It's possible to avoid this by building the appimage with the type2 runtime
https://github.com/AppImage/type2-runtime.