Hello! Yes, that's correct. There's more info in a note under Flora & Fauna:

Trees and grass are scarce within Panorama, but a few communities have made an effort to plant flowers, shrubs, and small trees along sidewalks. Beautifying the city isn't the biggest priority but people are people, and there's always gonna be somebody trying to brighten things up a bit.

Basically, it's primarily urban with some trees, grass, and bushes that have been left to grow naturally. While not completely barren, it's not full of lush parks. There might be a remnant of a park that used to be part of the city, but it likely would be overgrown, full of litter, and used by Runners to make exchanges. It wouldn't be the type of park you'd go on a relaxing nature walk in.