I’ve never heard of it going in the oven, but we have bent some acrylic at work for certain applications.
I don’t know if all acrylic bends or not. But, what we used was a heat stripping gun and heated the acrylic evenly where we needed it to bend, then bent it when it was soft. When we did this it didn’t turn out too pretty, but for our application it was never going to be seen, so it didn’t matter.
We actually deformed/melted part of it, so if your going to attempt to bend it I would practice a lot before doing it on something that was going to be seen.
I second what udjustin said about a jig