Dreyer played in Premier League 2, which is treated differently to the EFL Trophy. Presumably because the EFL Trophy has senior teams playing in it. So PL2 is treated as a youth competition, but EFL Trophy a senior competition.
https://www.brightonandhovealbion.com/news/3822739/ticket-news-albion-u21s-v-reading
Albion U21s round of 16 fixture against League One Reading will take place at the Amex on Tuesday 9 January 2024, kick off 7pm.
Tempted to go to this one.