@Mihnea275 now We have 5 communicator in stable Opera. You want Reddit to be added, someone may want Steam Chat, someone Discord, someone else just another... How many will be? Therefore, in my opinion, the best solution will be if all messengers will be in the form of extensions. If someone doesn't need one, they just uninstall it. In addition, messenger extensions can be created not only by Opera programmers but also by programmers creating add-ons.
https://forums.opera.com/topic/39669/all-sidebar-messengers-in-the-form-of-extensions/