Three additional information that might be helpful here: 1) I recently (about a week ago) updated my system from a fully patched Bullseye to Bookworm.
2) About one or two month ago the same scenario (select directories in homedir and create a ZIP via contextmenu) worked without any problems. 3) It isn‘t mentioned in the lis of installed softwarecomponents created by bugreport, but I also have the (new) package 7zip installed.