Is it obligatory to change the name "Shihab" later after learning of the prohibition mentioned by the Prophet, peace and blessings be upon him, and are the names that the Prophet, peace and blessings be upon him, changed—other than those that contradict the creed—forbidden or merely disliked?

The name "Shihab" should be changed to another name, not as an obligation but as a recommendation. This is because the dislike of being named with this type of name is a discommendation (karahat tanzih), not a prohibition. This is supported by a hadith narrated from the Prophet, peace and blessings be upon him, when he asked a man about his name, and the man said, "Shihab." The Prophet then said to him, "Rather, you are Hisham."