A response and a question:
I would say that the Nomad can hit 0.1mm with little trouble. I have run parts to 0.05mm repeatably over 100mm span.
You will want to run a full calibration check on the machine (x, y, and z travel; homing and tool length repeatability) though. The leadscrew on my machine is within spec, but there is enough accumulated error that on a 70mm travel (70mm C-C, +/-0.05), 3mm alignment pins wouldn’t make the holes on an optical assembly. The adjustment to the steps/mm setting was mad and it was all good.
See: Inaccurate positioning for what I did to check and adjust. Note that the machine was not matching an existing gauged part over center-to-center for holes and, after calibration check and adjustment, it does, and still does today. I haven’t worried about root causes. I have seen worse from much more expensive machines.
The question: It appears that you ran a surfacing operation, then did the large pocket. What was your pocket strategy? It appears to be HSM adaptive (trochoidal). Why no finishing strategy?
EDIT: fix typo in number.