How to setup Netatmo integration using webhooks to speed up device status update response times

EDIT: webhooks now work flawlessly.
I don’t know what i did differently

ORIGINAL POST:
Can anybody confirm if webhooks are still working with a “fresh” installation?
I only use smart valves, not sure if this is the problem.
My installation was working untill march, then we turned off the heating and i did not care for a while.

For some maintenance, I deleted the integration and re-installed it.
If during installation i use the “developer” method here described I get nowhere, with an error that states unable to register webhooks, and i get no entities or device.

If I login “normally” with user/password I get my entities but no webhooks.

Anybody in this situation?