Playstation 5 user here, H3 Deluxe with pre-order. Did the carry-over process and the Trinity Pack was missing. After closing and re-starting the game, it appeared.
All I am missing is the Requiem pack - seems to be a known issue covered in a different thread.
Ok! How did I not know that? Thanks a bunch!
The same problem.
Epic support don’t help me.
But in game i have suits, briefcases and pistols colored with white, red and black.
Is it all content of trinity pack?
Dude, did you even watch what you brough - preordering Hitman 3? 
You got your awenser, you’re welcome.
IF ANYBODY is missing their trinity pack contents after the progress transfer (on ps4), simply restart your game until the contents are accessible again, it worked for me and @ Wim_Hof