Created attachment 9323 Patch File Catfish did previously not run on Wayland, but this is fixed now. Currently there is a hard coded exit with the msg to run the application with x11 backend. Removing this causes the application to run (mostly, see bugs) fine under Wayland. I patched the current source and did some testing. I tested about everything I could find and everything seems to run absolutely fine. Bugs: Running the application with the wayland backend causes the Application Icon to not display in my taskbar on Gnome 3, running it under X11 shows it just fine. I don't have a solution for this. I added a patch file. This is likely not the way you guys want it to be, if so, please ignore this.
Sean Davis referenced this bugreport in commit 4d826a35a13ed2e99f63c60c1e4ec9b5666e156d Reenable Wayland support, adjust desktop entry and WM class for Wayland and GNOME Shell detection (bug #16293) https://git.xfce.org/apps/catfish/commit?id=4d826a35a13ed2e99f63c60c1e4ec9b5666e156d
Thanks for the bug report and notes. I tested in GNOME Shell and identified the remaining issue you identified. The above commit seems to fully resolve the issue.