From last 1 year or more, Microsoft's SMS Organizer App is my default SMS app. Installed it on my Samsung as well. It keeps away lots of Spam messages and we don't get disturbed by such messages.
For calls, Samsung provides call blocker, but it only blocks number or series as we blacklist, but no mechanism to report spam caller.
For calls, Samsung provides call blocker, but it only blocks number or series as we blacklist, but no mechanism to report spam caller.