A key feature that I use a lot at work and as a hobbyist is the variable helix from solidworks. Currently, the only way that I know how to create one through fusion is to create a coil and project the helix you get from that onto a surface. This doesn't always work if the surface isn't uniform. The thread feature also doesn't allow for different shapes (or the process of getting custom shapes is overly difficult and requires extra tedious steps) making it difficult to have custom threads. Simply adding a variable helix feature would allow for custom threading via the sweep feature.
