Is it possible to consider the assumption of the existence of another god having another world inherently impossible, and did Ibn Taymiyyah address this point in his books "Darʾ Taʿāruḍ al-ʿAql wa al-Naql" and "Minhāj al-Sunnah" or in other books, or does the problem lie in the questioner's understanding?

The gist of Sheikh Al-Islam Ibn Taymiyyah's discourse on the issue of the multiplicity of gods and worlds is that it is impossible for there to be a god worthy of worship alongside Allah. For if there were more than one god, each god would have taken what it created, and some would have ascended over others, resulting in different, conflicting, and unorderly worlds. However, the world we observe is one and consistent, and this can only emanate from a single Lord. Therefore, the existence of another god in another world is rationally and religiously impossible. The Holy Quran affirmed this meaning.