I contacted Netflix support, and they basically said, "Sorry. That doesn't necessarily actually stop them. We can't share anything about whether we have plans to change that."
It has been like this for years. I don't know if it's a glitch with my account or if they are doing it on purpose. Neither possibility makes me a happy customer.
Call customer service, tell them you'd like to be removed from all A/B tests, because it's messing up your experience. They should still have a button to do that.
Most people are in the "On all other devices" category. Having to pull out a computer for what should be an in-app setting is ridiculous when you can sign up on some of those devices directly.
I contacted Netflix support, and they basically said, "Sorry. That doesn't necessarily actually stop them. We can't share anything about whether we have plans to change that."
It has been like this for years. I don't know if it's a glitch with my account or if they are doing it on purpose. Neither possibility makes me a happy customer.