Betting that anyone who was there and hadn't played Elden Ring was confused as fuck by the multiple endings. And some folks were probably like, "spoilers"
When you watch the fight with the elden beast in slow motion you get to see more detail than when you see it at normal speed. It's just a bunch of flashing lights but one of his AOE looks like how Queen Marika was hung and speared. I didn't notice that till now.
The gameplay audio played in and out every now and again, some scenes had the sound of the fight, some were silent. Overall it didn't mess with the performance