Quantum immortality is just an absurd quasi-religious pretense of physics that caters to those that fear death but feel embarrassed to participate in the traditional socially approved coping mechanisms.

I do not think death exists as a thing. We're shoving a lot of stuff into the concept. Pain, loss of information, of the one who dies. Fear of the unknown, what happens next. Death is a very volatile concept if you really try to pin it down. When you take all the layers off...you are left with nothing really.

But yes, the apparent loss of information seems to be true, for us at this technological level.