This feature request is still being reviewed. The team is working hard to make numerous changes with regards to notifications, but they haven’t forgotten about this item.
I hope to have more details soon.
This item is still being reviewed by the feature team. No additional news to share at this time.
I was able to search chat for messages from October. I am not able to search in Wiki without it opening an mht file in my browser. A search function for text in OneNote needs to be added too.