If the Rashidun Caliphate had conquered all of Europe within the 8th century, what would have been the impact on Western history?

If we assume that the Rashidun Caliphate conquered all of Europe, as well as the rest of North Africa and Asia, what type of implications would this have on Western history? It would have been interesting to see how a Middle Eastern religion governs Europe. Would there have been a lack of scientific advancements in Europe due to them being conquered by the Rashidun Caliphate like the Ottoman Empire?