I would not use the word buggy describing ROS sims. Coming from a background of writing my own rover os, configuration settings and satisfied library dependencies are critical to a clean robot mission. Simulations double the number of settings and dependencies required for a successful simulation. I have been practicing ROS2 since November, with successes and failures. All of the failures happened when I deviated from any critical steps described in the tutorials. The SIMs may need more in the way of a Recipe of steps to configuring the sim for dependencies and/or settings.
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