Stephan-P I do think that it would be helpful to understand if a rollout is in stage alpha, beta or stable. The Info app would be a perfect place to communicate this.
I think it's extra maintenance for something I can't see being useful for, the update always goes through the Alpha channel first, always.
You choose between the Alpha, Beta and Stable channel in the settings and you'll get the version that matches, some users use the Alpha or Beta version because they're hoping either to report bugs or because they don't feel like waiting, and other users prefer to stay on the stable channel.
Stephan-P in my experience it may take 2-3 days until the stable update reaches my phone
I think it's very correct and of course it depends on the situation, whether bugs have been reported or not.