von Däniken was popular absolutely everywhere, including in Egypt. The original Chariot of the Gods? was published in 1968; in 1969, it was already being referenced by an Egyptian author, Abdul Razzak Naufal, author of Heaven and the People of Heaven, who claimed alien visitations. The most famous person to take up the mantle was undoubtedly the journalist Anis Mansour (one of the most famous writers in Arabic from the 20th century) who wrote Those Who Descended from the Sky in 1971, and while he doesn't mention Chariot of the Gods? by name, he clearly followed the same structure.

We are not alone in the universe, and our ancestors are not from among the apes!

Mansour more or less copied von Däniken's format of making inferences from various ancient texts (including the Qur'an and an Egyptian papyrus in the Vatican) that sounded like they could be interpreted in a somewhat alien way. He followed with a sequel, Those Who Returned to the Sky (again somewhat in imitation of von Däniken who immediately followed up Chariot of the Gods? with Return to the Stars) which included conversations with a geologist (Farouk El-Baz) who in a long discussion "confirmed" the information given about aliens arriving and leaving their fingerprints on Earth. As of 2001 there have been 18 editions of Those Who Descended from Heaven, and by 2003 there were 15 editions of the sequel.

Related to this whole network is the Saudi Mohamed Abdu Yamani, who was friends with Farouk El-Baz (the one who helped with Mansour's sequel) and wrote books on flying saucers with reference to sources in English; he also discussed the Qur'an, and noted that the verses

...do not contradict the probability of life in God's vast universe.

Perhaps the only difference between "Western world" reception and the Egyptian one is that science fiction was a little more scattershot; there were some strong authors who produced science fiction through the 40s and 60s (like Yousef Al-Sibai) but they never really identified as "science fiction authors" specifically. It was with Nihad Sharif in 1972 (The Lord of Time, about a protagonist who is frozen and is awoken in the far future) that Egypt had its "second wave" and had actual science fiction specialists, so the pseudohistory wave started by von Däniken arguably started the exact same time SF as a full genre in Egypt exploded.

It should also be noted that -- despite earlier precedent -- authors really did need to put out effort to reconcile being Muslim with science fiction. The Fifth Dimension was written in 1968 (likely before von Däniken had been heard of in Egypt, although also not published until 1972; the author, Ahmed Raef, was a political prisoner) and is a very explicitly Islamic science fiction play involving a trio of space travelers who want to escape Earth to join a community on Mars (and find, as part of their travels, a space utopia based on the Muslim Brotherhood). The preface was written by another prisoner, Muhammad Qutb, and said that since the Islam encompasses the entirety of existence, Islamic art could examine "absolutely every topic" and follow God rather than the "ignorance" of capitalism and communism.

...

Determann, J. M. (2020). Islam, Science Fiction and Extraterrestrial Life: The Culture of Astrobiology in the Muslim World. Bloomsbury.

Hamamsy, E. W., & Soliman, M. (2013). Popular Culture in the Middle East and North Africa: A Postcolonial Outlook. Routledge.