@JFischer911 thinking of chipload as a percentage of tool diameter is in general a good guideline, because it gets you thinking about how big of a “bite” the tool takes with each revolution.
In harder materials, you have to “nibble” with less of the tool, and in softer materials you can “chew” more with the same tool.
Also, if you’re using a smaller tool, it will need to have a smaller chip load that reflects the reduced flute-size.
I generally find that for the materials a Nomad and Shapeoko can handle, somewhere between 0.5% and 2% of tool diameter has been appropriate for adaptive-clearing work, which is a type of tool path strategy that prevents overloading the tool. This is assuming between 1x & 3x the diameter of the tool for cutting depth, depending again on whether the material is harder or softer, respectively.
So all that to say “your mileage may vary” but starting from 1% of tool diameter for chip-load is probably reasonable in most materials, if you’re careful with depths to respect the (lack of) rigidity of the machine.