There’s no public announcement yet but from what reps say to customers and what people working on azure say is app insights is more or less being wound down in favor of building out open source solutions because it’s more favourable and less maintaince / dev than building out their own solution. Think more OTEL/Grafana. Basically word on the inside is MS doesn’t want to pay to build out app insights.
Do you have a link for what you are speaking of?