What happens when Maltese passport immigrants don't take the oath?

Nothing will happen. According to the announcement issued by the Malta Identity Bureau, the Malta Identity Bureau actually considered the applicant's situation and issued an official notice on April 28, 2022. From now on, when submitting the application materials, there is no need to swear proof form for the time being, and it will not be so bad for Maltese passport immigrants not to swear. The Republic of Malta, referred to as Malta for short, is a small country located in the Republic of Malta in southern Europe. It is an island country located in the center of the Mediterranean, and is called "the heart of the Mediterranean" and "the village of Europe".