Alexandria suffered from mob violence from Ptolemaic times onwards. Indeed angering the Alexandrian mob was something that not even the Ptolemaic kings did lightly. There were Greeks and Jews who fought each other.
By the end of the 4th century there was a three-way split going; the Jews still existed, but the Greeks were split into “Christian” and pagan groups. I think few of us would feel much identification with any of these. The patriarch of Alexandria, Theophilus, was more or less the head of the “Christian” mob, and in some ways acted like a mobster.
Cyril of Alexandria was his nephew, and inherited both roles. It cannot have been easy to do so, and in fairness he doesn’t seem to have pushed the godfather role in the way his uncle did.
Hypatia got involved in the mob politics. What she was trying to do was to get the prefect to act against the “Christian” mob. Not unnaturally she got lynched. It is quite unlikely that Cyril ordered this, or needed to.
Cyril is not popular in western churches, so he doesn’t get a fair hearing. But the murder of Hypatia (who was friends with bishop Synesius of Cyrene) was a matter of politics, not religion.
All the best,