Because the diode series L, R will "kill" the high frequency
performance of any upstream capacitors, you place the
low value high frequency caps inside the reverse blocking
diode close-in to the chip(s). Otherwise the current loop
is too large for HF decoupling to be effective.
I wouldn't bother estimating the Schottky Vf drop with no
part info given. I've seen Schottkies from 0.3V (Si) up to
almost 4V (SiC), and Schottkies have an inferior high current
conductivity modulation (i.e. none) so they have a much
higher resistance per die size.