view3dsync.py

import bpy, mathutils

WORKSPACE_NAME = 'Sculpting.001'
LEADER_OBJECT = 'Sculpt'
FOLLOWER_OBJECT = 'Empty.001'
SYNC_FREQ = 0.05

# this is bpy.context.screen if you're in the proper workspace. Not when you run this from the Scripting one
screen = bpy.data.workspaces[WORKSPACE_NAME].screens[0]

# the default sculpting layout has a view3d at index 2 and the one pulled from the left would be index 3.
# the better way is to tie this to the tool and use its context? somehow? idk.
area1 = screen.areas.items()[2][1]
area2 = screen.areas.items()[3][1]

def sync():
  obj1 = bpy.data.objects[LEADER_OBJECT]
  obj2 = bpy.data.objects[FOLLOWER_OBJECT]

  area2.spaces.active.region_3d.view_rotation = area1.spaces.active.region_3d.view_rotation
  area2.spaces.active.region_3d.view_location = obj2.location + (area1.spaces.active.region_3d.view_location - obj1.location)
  area2.spaces.active.region_3d.view_distance = area1.spaces.active.region_3d.view_distance
  area2.spaces.active.region_3d.view_perspective = area1.spaces.active.region_3d.view_perspective
  
  global timer_set
  if timer_set is not None:
    return timer_set

timer_set = SYNC_FREQ
bpy.app.timers.register(sync)