I was able to load the STL file into PrusaSlicer2 and after adjusting tons of settings, specifically aimed at the 0.1 mm nozzle, could get a linear print. Having to go through those gyrations made me consider that you may be able to accomplish the same with your native slicer. Look for something akin to "slice gap closing radius" as it is called in PrusaSlicer2. When it was too large (default) the program merged adjacent lines and printed diagonally. Once decreased to 0.005, the lines show as individual traces:

chopsticksPS2.jpg

If you are considering other slicers yet, PrusaSlicer2 is quite powerful and easy to use. I'm a S3D owner, but could have saved my money and not been the wiser.