It's pretty disgusting the way they are trying to slip this through the backdoor. They are also making it super difficult to opt-out - you have to print out a form and physically hand it to your gp if you have children for example. Not also that there are TWO opt-outs that you have to do. This site is a great explanation of what you need to do: https://medconfidential.org/how-to-opt-out/

The NHS digital one is almost purposely confusing.