PX4 with Nav2

Hello, I am doing a project where a drone using PX4 and ROS2 can detect and avoid static and dynamic obstacles. So far I found Nav2 with the packages of Isaac ROS, but I couldn’t find a way to send it to PX4. Using 1.14 there is off board mode where a set point is sent, and I understand it should be the way since sending a trajectory is erroneous due to the constant change of it. Using 1.15 there is the control interface and the set point of type go-to, but still can’t figure it out.

Any recommendation would be really appreciated, of am rube other approach of this challenge.

Thanks