As I understand, the org.xfce.Catfish.desktop entry has been added by the system. Does anybody know how to prevent this? I have tried to delete this entry so that a folder would be opened in Thunar and not in Catfish, but it gets added on package install/update.
Note: I extensively edited the post and it is a question now.
I moved this topic. The big report section is for reporting bugs with EndeavourOS applications and installations. There is a global sticky on the forum reflecting this as a friendly reminder. EndeavourOS does not maintain the package. If you think there is a bug then report it upstream to this maintainer. They can be found here: https://archlinux.org/packages/community/any/catfish/