That depends on what large format camera you are comparing to.
Old film cameras have very low focusing resolution when used for high-mp digital backs.
But for instance an Arca Swiss RM3Di or Factum as the front standard on an Arca view camera has FAR finer focusing resolution than any dSLR, and has the benefit of distinct focus numbers and ticks for stacking. Though of course it has no remote focusing capability.
While the Arca Swiss does have a very low pitch helicoid focusing mechanism requiring rotating the focus ring quite a bit for even fine adjustments
you will never get the precision, speed and accurate repatability that you will get using computer controlled focus stacking.
Stating that the Arca camera has finer focusing :resolution" than any dSLR is misleading. There is no problem doing a 100 step focus stack with the
focus motor of recent recent better DSLR lenses. Doing a repeatable and accurate stack with many steps manually with a tech camera has many limitations. Just cocking the shutter shifting the focus every time is a problem. While the focus ring has many markings there are not enough
for a stack with many steps. Depending on the subject many steps may be needed.
Also repeatability is important to several macro techniques such as multiple lighting passes.
One lighting pass for detail and one lighting pass for the style you want.
Non computer (or mobile device) controlled stacking is very limiting.