Are diva cups really safe?

I’m a 28 year old woman who just is sick of finding out things she’s used for the entirety of her menstruating life are bad for her. Birth controls, tampons, pads, bleach this, carcinogen that. So I’ve used a diva cup in the past, and it wasn’t awful, but I didn’t love it. I have been back on tampons, the 100% cotton ones by tampex, but I want to stop using them. But I’m wondering if anyone knows how much research is out there about their safety. Like are we going to find out that they’re bad too in 10 years.