For AppImages specifically, the guy that made the tech has had a lot of controversial arguments and opinions and a general unwillingness to accept change. Things like intentionally making it so Wayland doesn’t work because he dislikes Wayland. Also dropped a PR for AppImages for things like OBS but then refused to take responsibility for making sure all the features works and maintaining it, and then throwing a fuss when the OBS maintainers ultimately decided to not move forward with it due to lack of support commitment. Dude wanted to throw all the burden on the OBS team and then proceeded of accusing them to be paid by RedHat to favor Flatpaks. Also got mad that distros stopped shipping some outdated/unmaintained libraries AppImages relies on and refuses to upgrade it. Just massive ego problems overall around his pet project that it AppImages.