I use the same Apple ID on all three devices. You can see here what I see when I go into the settings. I cropped one of the devices but that’s my iPad and iPhone.
I see backups, but have no way of knowing which device was last backed up successfully. I know that I can see specific items at the bottom of the settings like Restore Bookmarks or Restore Calendars And Reminders, but I don’t see specific device backups.