Unfortunately. RIP. She's an okay singer, but she is a Scientologist, so there's that.
Her parents are, afaik she never spoke out about it herself
I don't think we'll get confirmation for certain, so we can all just guess whichever one makes us feel better.
Religion becomes problematic when people start telling others what they can or can’t do. So as long as she doesn’t speak about her religion I’m fine either way.
Unfortunately, that's Scientology's whole thing.