>>51322415The point is that placeholder names stopped being used after gen 6. Back in gen 7 the canon name of the protagonists was used in pre-release material, with the "game-based names" being used only as alternative (see pic related, Elio was used all the time, but in this case, "Sun" was also used because they needed a second name for the boy). This applies to gen 8 as well, Victor and Gloria were in pre and post-release material, the names seen in trailers and such is just their official, canon name.
The main character of SM/USUM is Elio or Selene.
The main character of SwSh is Victor or Gloria.
The main character of LA is Rei or Akari.
The main character of SV is Florian or Juliana.