Hi, welcome to OSM! Please note that highway=trunk is defined in California, as in most of the US, as a key long distance connection, not by the presence of an interchange. This definition is documented in the wiki: https://wiki.openstreetmap.org/wiki/California/2022_Highway_Classification_Guidelines. Therefore, I don't think this short stretch of Olympic warrants a classification change.

Also, it looks like you've dragged the sidewalk near La Cienega/Obama so that it crosses the road. Please take care when modifying ways so that they all align with each other.

Thanks!
Will