I understand that DEs like KDE use libappimage to obtain metadata and get icons from appimages.
There is a newer and better way to produce appimages.
These appimages use up to date dependencies but can run on old distros. Another feature is that by default they use DwarFS instead of SquashFS because it produces smaller binaries that load significantly faster.
Because they use DwarFS, icons do not appear by default in DEs. Various thumbnailer tools have added support eg. https://github.com/kem-a/appimage-thumbnailer/releases
Please add support for DwarFS appimages to libappimage.
I understand that DEs like KDE use libappimage to obtain metadata and get icons from appimages.
There is a newer and better way to produce appimages.
These appimages use up to date dependencies but can run on old distros. Another feature is that by default they use DwarFS instead of SquashFS because it produces smaller binaries that load significantly faster.
Because they use DwarFS, icons do not appear by default in DEs. Various thumbnailer tools have added support eg. https://github.com/kem-a/appimage-thumbnailer/releases
Please add support for DwarFS appimages to libappimage.