Angular migration 14 to 15 / 16: Has angular universal ceased to put <!– this page was prerendered with angular universal –> for pre-rendered pages?

I recently migrated from version 14 of angular to version 15 (and then to 16) and pre-rendering with angular universal seems to have changed: It still seems to work afaict but the familiar <!-- this page was prerendered with angular universal --> has gone.

Questions:
Can I no longer rely on the added html-comment to quickly verify, prerendering and ssr is working? i.e. is it gone?
If yes, why and why can I not find anything online?
If no, what might I have broken during migration that killed it?

>Solution :

Since v15, you have ng-server-context in your DOM when the content has been generated by universal.

You would either have :

• ng-server-context="ssr" when the content is generated dynamically
• ng-server-context="ssg" when the content is being prerendered (static site generation)