You don’t need to watch the whole video. Mostly it just highlights why FreeCAD is VERY capable but not a great First CAD Tool.

And Fusion 360 is the best, period. But OnShape actually might be better for a purely FDM workflow. Most of Fusion, and FreeCAD, strengths are in being able to simulate stress and strain and having ways to design a part to incorporate the cuts that a CNC/Mill would be doing. And OnShape is fully browser based for good and for bad.