Sabine Hossenfelder is a popular YouTuber with 1.7 million followers, she is a physics PhD who makes videos on physics.. about 9 months ago she had a video where she said she was signed up with tomorrow biostasis, the European cryonics company, although if you look at her videos, she makes money off of product placement advertisements in her videos where she discusses a product and touts it, which of course she is paid for doing by the company.. but in any event although I don't believe she's actually a true cryonicist, it is something worth noting. Anyway so I also did some research into her personal beliefs and it turns out that she is an atheist and what I would call a quantum immortalist...
I wrote up everything here on Reddit with some quotes from her on her beliefs regarding quantum immortality:
https://www.reddit.com/r/CryonicsUncensored/s/N6enh2EjCr