What is the post-processor you are using in F360?
Did you try this one? fusion360-post-processor-for-maslow
bCNC and Camotics also display a strange views and the small circles are vertical.
This is in the CAD/CAM workflow. Try the Maslow post-processor or alternative Grbl, Linux-CNC, Mach3.
Kind regards, Gero
Edit: G19 in the code!
G17 is XY plane, G18 is XZ plane and G19 is YZ
Edit2:
I took out the circles and some strange zig-zag, plus the G19 from a different plane, corrected 2 wrong x-coordinates and removed all ->‘:’<-.
This is what a simple rectangle looks like:
