The search widget in Experience Builder does not show results of an address search by house number order - as it did in Web App Builder...
It does not matter what your order by, or index by...
a search for 12... as a start of an address, results in a list like this...
![LenBundra_0-1679066679787.png LenBundra_0-1679066679787.png](https://community.esri.com/t5/image/serverpage/image-id/65572i56FA3BBEB2EDA774/image-size/medium?v=v2&px=400)
This appears to be an Experience Builder issue. It is working as you expect in Web AppBuilder - using the same address data source...