Fantastic how you manage to be wrong on both accounts.Death stranding and GoT directors cut didn’t have any new story content. GoT Iki Island could be bought separately so that’s not part of the directors cut.
- Ghost of Tsushima: The director's cut is the DLC for Iki island + a couple other things. What you paid extra was for PS5 specific improvements, which came at a cost of $10.
- Death Stranding: The director's cut includes story content, new equipment, new side-content.
Edit2: In case of doubt, here's a discussion on GoT DC, and here's a discussion on DS DC (more like a changelog)