FreeCAD is not in the same league as Fusion360, having used both. The Bambu handles both the bed heating and the enclosed air temp easily in my experience with using high temp nylon.
Cloggie -- you don't need to export to Bambu, just use:
Utilities >> Make >> 3D Print, and point it to the Bambu Studio software the first time. You just choose the object you are printing and it puts it right into Bambu on a plate to start prepping and slicing.
You can then create a hot key combo by hovering and clicking on the ellipsis ...
(I like Command+P and go right to it).
Hot key setup:
