Why are there competing JXL plugins from the upstream libjxl project and the GIMP itself?
I have fixed several issues in the upstream plugin.
No support for decoding animations: Fixed by https://github.com/libjxl/libjxl/pull/1863
No support for decoding progressive files: Fixed by https://github.com/libjxl/libjxl/pull/1870
Now I see though that here, in file https://gitlab.gnome.org/GNOME/gimp/-/blob/master/plug-ins/common/file-jpegxl.c, there is a plugin with an entirely different codebase. ???
Edited by Fredrick Brennan