depending on personal wishes, I think it is unnecessary to send it.

You can know that if you have a close relationship with your boss, or want to deepen your relationship with your boss, you can choose to send a thoughtful little gift to express your blessings and thanks. However, if the relationship with the boss is distant, or you don't want to spend too much time and money on gifts, it is ok not to give gifts. The most important thing is to keep a sincere and grateful attitude and work and develop your career with a positive attitude.