[henearkr]

One by one:

- A/B testing is agnostic of who the user is, it is randomized. If it was not, that would be a bad practice and would legitimately ruin the reputation of the company doing that,

- auto-updates is just the setting allowing the most recently published update to be installed. "Published" means it is for everyone. If that is to be understood in any other meaning, that would also be bad practice,

- and I don't see what you mean by server-side re-routing.

To be honest, maybe I just live with different platforms and apps than you I don't know. I use Android, and Linux on my Laptop, but I would also expect Windows to not discriminate by user when pushing updates.