Use Kodi 19.0 stable from the regular Flathub remote.

roles/kodi/tasks/main.yml

@@ -57,7 +57,6 @@
 - name: Add Flatpak remotes
   with_dict:
     flathub: https://flathub.org/repo/flathub.flatpakrepo
-    flathub-beta: https://flathub.org/beta-repo/flathub-beta.flatpakrepo
   community.general.flatpak_remote:
     flatpakrepo_url: '{{ item.value }}'
     method: system
@@ -68,7 +67,7 @@
   community.general.flatpak:
     method: system
     name: tv.kodi.Kodi
-    remote: flathub-beta
+    remote: flathub
     state: present
 
 - name: Create users