Tree search hasn't replaced vector search, you can use them synergistically, it's just that vector search is "fiddly" as you have to set up a bunch of stuff to

Tree search hasn't replaced vector search, you can use them synergistically, it's just that vector search is "fiddly" as you have to set up a bunch of stuff to index your repos, manage embeddings, etc and it can use a lot of disk space if you don't use graph representations for your embeddings like LEANN.