O/S/F speeds do not appear on the FLT PLN, they do not appear on the ND.
The FMGS has no idea when you will select flaps. So it has no idea when you will be at what speed.
If you left it to fly the whole approach by itself, it would maintain green dot the whole way in.
Why? because you never selected any flaps, so it never went to S/F/Vapp.
I think what you are referring to are pseudo waypoints. There are 4 kinds. The display shows them as waypoints in parentheses
1. T/C (top of climb)
2. T/D (top of descent)
3. SPD LIM (speed limit)
4. DECEL (deceleration for approach)
None of these are for F/S speeds. Because the pilot has to command F/S speed by setting flaps. The aircraft cannot do that by itself.
clear?