It’s not so much that there’s Islamic magick.
There’s folk magick syncretized through Islam, the same way you have folk magick syncretized through Christianity and Catholicism.
In Africa, the marabouts syncretize Islam with Vodou in Senegal, Mali, and Volta, and get powerful results. There is also a syncretized version of Islam with Ifa in Nigeria.
In Algeria and Morocco, Islam has long been syncretized with Berber magick and Kabbalah.
In Libya and Egypt, Islam syncretized with local traditions to make modern types of Egyptian magick different from the ones practiced in the old Dynasties.
In Sudan, Islam syncretizes with Coptic Christianity in some strange ways to make local magick.
In Arabia, Islam syncretizes with the ancient lunar cults in secret.
In Syria, Iraq, and the Levant, Islam syncretizes with the remnants of Babylonian magick for local magick of great power.
In the Balkans, Islam syncretizes with paganism and Orthodox Christianity in unusual ways to create Eastern European magick traditions not yet known in the West.
In Iran, Sunni Islam syncretizes with ancient Persian magick from traditions such as Zoroastrianism and other local traditions.
In Afghanistan and the former Soviet Republics, Islam syncretizes with clan traditions for very personal types of folk magick.
In Pakistan, Islam syncretizes with Dharmic religions such as Hindu and Bhuddist traditions to give magick that can be very dark.
In Indonesia and Malaysia, Islam syncretizes with island traditions and Chinese culture to give extremely powerful magick you only find in that part of the world.
It’s not like there’s one type of Islamic magick. There are many, and what locals add to it usually comes down to inherited culture they take for granted through ethnicity.