Toyota Center concert seating question

Hey y’all – Buying tickets to a concert at Toyota center. At the purchase screen I noticed they don’t allow you to select specific rows and seats. It’s just in general “upper level, lower level, floor” type groups.

Do they usually sell tickets like this? I’ve been to rockets games and it wasn’t like this and all the other cities this artist is touring at lets you select seats. A bit annoyed, never seen something like this before…