I live in DeLuna where we had the same issue in early 2022 when we had just moved in. Our street was hard to find by delivery companies since most of our neighborhood wasn't on Google Maps. We ended up going into Google Maps on web and added our streets manually and Google accepted them within a week or even a couple days in some cases. Eventually ourselves and a few others added all of the streets within a month or two. I'll attach a link where you can do this.
Add a missing road to the map - Local Guides Help