I've recently learned that the claim of Islamic Countries being more advanced than Christian ones is a complete and total lie.
Because those middle eastern countries were more advanced than the western countries in some cases yes, but only when they were still mostly Christian.
When invaded in the 7th and 8th centuries by the Arab Conquests, some of them had 80% Christian populations with only 20% being Muslim.
634–638 CE
The Rashidun Caliphate annexed the Levant
636
The Muslim armies conquered Syria, Palestine, and Lebanon after the Battle of Yarmouk
637
The Muslim army defeated the Sassanid Empire in Iraq at the Battle of Qadasiya
711
The Umayyads conquered Hispania, establishing Islam's first foothold in continental Europe
The Middle East only became majority Muslim in the 12th Century, and the end of their scientific Golden Age is considered between the 14th Century and 16th Century. Notably, there are still Christians today in nearly all Middle East countries invaded in the 8th Century Conquests, with for example Egypt still have a large population.