Caesar Antony is given first credit, while the muslims got the rebuilt collections later
If the ‘slims took credit, I’d believe them.
https://www.dailyhistory.org/How_was_the_Library_of_Alexandria_Destroyed
The Great Library wasn’t burned by Julius Caesar. Had it been, it wouldn’t have been around to be replaced (crumbling papyrus with parchment) during the Roman era, and then burned by order of the caliph after the muzzie conquest of Egypt.