maybe the ECU has the modes but there is no way to use eg. Forscan to trigger them. There may be a darker hack but I haven't seen it documented. On a 6MT car the modes are innocuous - it only changes early throttle pedal sensitivity and response gradient. If you have 10AT then it changes transmission behavior and fairly significantly.They all have drive modes
I had 101A on my Eco with 6MT. I had a custom tune so the Ford pedal maps weren't particularly interesting and so spent most of the time in Normal. The active Exhaust setting though I changed regularly.
On an Eco with 10AT I think the modes are essential assuming the transmission behavior doesn't annoy you to the point you want to crash the F'N thing into a wall. Otherwise you HAVE TO have paddle shifters. Without them Normal on an Eco+10AT is as fun as a flaccid male member - completely uninspiring, well it was so back in '19. I haven't sampled a MY20/21 yet.
I desperately wish there was a way to retrofit paddle shifters to a car that's missing them.