Well, there's a specific workflow that you need to follow, and it also sounds like you're brand new to this whole Fusion thing. I suggest spending a bit of time with some of the built-in learning content as well as some of the popular YouTube channels out there.
In the Design space, you'll need to Insert the .svg into Fusion. You will then make any corrections needed (with your file, I found that the text moved). Once you have it sized and aligned correctly, you can then go over to Manufacture and create your Setup and apply your Engrave or Trace toolpaths. Once that is done, you will click the Post Process button and select the post processor that you need to use for your controller and machine.
Seth Madore
Customer Advocacy Manager - Manufacturing