How was Sultan Suleiman a bad leader? (Ottoman Empire leader)

How did Suleyman improve the Ottoman Empire? With his vast knowledge he helped improve the Ottoman empire by expanding to the east and west, built bridges and mosques, reformed taxes and systems, and during his rule, he was considered to have made many cultural achievements creating the height of this empire.

Explanation:

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.