Hi @MGDSC !
The situation with this deprecation was a bit complicated – first they stated an earlier deprecation date and thus we modified notifications so that they could work with the Workflows. Later Microsoft indeed decided to prolong the support, but the notifications are not compatible with the webhooks anymore, if I am not mistaken.
The werk states the change to workflows. The wording “Webhooks”, I believe, was taken as per instructions by Microsoft, within MS Teams: Retirement of Office 365 connectors within Microsoft Teams
There are a couple of topics linked to initial post where Community Members troubleshooted issues with the Workflow – maybe they could help? For example: MS Teams notifications to the new Teams Workflow? - #38
Hope this helps!