How prevalent was the despicable crime of r*pe during the Civil War in Syria? Was it predominantly adopted by the Syrian Arab Army?

Hey guys, I'm an Albanian living in London and work in the civil service. I have recently started researching about the civil war that happened in Syria after I met some wonderful Syrians at my work place. I do remember listening about it on the news when I was like 14 (26 now), and I never understood how on earth Assad survived this. Anyway, I got really deep into reading articles and testimonies of war survivors - and there was a common theme that kept occurring. That is the trauma of sexual violence that many Syrians live with from the civil war. I just don't understand how this was so rampant in Syria? There was one testimonial I read about a poor woman being r*ped by despicable Assad Soldiers under a portrait of Bashar Al Assad. Absolutely disgusting. Has the Syrian government ever addressed this issue? How did this even come to be a thing there?Has anyone heard any similar stories of what I'm talking about?