On a recent install of Debian stable (version 13.2) I'm finding that emacs org-mode isn't working. Which is to say if you open a *.org file the status bar indicates you're reading it with org-mode, but it looks like it's just interpreting it as a text file (big blocks of asterix that aren't folded into one).
dpkg --list | egrep emacsii emacs-bin-common 1:30.1+1-6 amd64 GNU Emacs editor's shared, architecture dependent files
ii emacs-common 1:30.1+1-6 all GNU Emacs editor's shared, architecture independent infrastructure
ii emacs-el 1:30.1+1-6 all GNU Emacs LISP (.el) files
ii emacs-gtk 1:30.1+1-6 amd64 GNU Emacs editor (with GTK+ GUI support)
ii emacsen-common 3.0.8 all Common facilities for all emacsen