So there's a workspace on github that is made for two branches: ROS Melodic and ROS Noetic.

I'm trying to convert it to ROS2 for 2 reasons:

1. Actual reason: I want to integrate it with another package that runs on ROS2.
2. Personal reason: I've been jumping from ROS to ROS2, seeing that every new package is being made from ROS2 and I like it more in general (I've been recently jumping ships) so I'm considering this conversion process of the launch files and scrips like a training process for me.

My question is: is it enough to copy/paste all the .rviz, .urdf, .dae, .sdf, .world, .xacro files as they are or should we change anything in them? My thought process is that if ROS and its API has changed, that doesn't mean that Gazebo or RViz have changed so these files are probably the same. But I could be wrong.

So if anybody knows what's up, please let me know so I have a clear idea from now of how I should move on with the codes. Thank you!