I don’t like the fact that my sync speed is limited to 1/200 or 1/250, when I could go to 1/400 or 1/500 with film, depending on the camera.
Medium format cameras haven’t changed much, sync speed remains as it was. But the cost of some digital backs may make your head spin. Back in the days of the Canon FTb (a film SLR), sync was at 1/60th, so it has improved a lot over the last 40 years! If you are shooting with Canon or Nikon, and perhaps others, and you have the right flash, you can use High Speed Sync. Flash power is reduced but it is effective for many situations and you can add extra units to get more power if desired.