https://wccftech.com/ghost-of-tsushima-legends-in-game-purchases/

Ghost of Tsushima: Legends may start featuring in-game purchases in the future, according to the ESRB rating of the upcoming standalone release.

The rating, which provides a general description of the multiplayer mode released a few weeks after the open-world game developed by Sucker Punch, also mentions in-game purchases on both Playstation 4 and PlayStation 5. The current version of the game doesn't feature any, so it's not clear if in-game purchases will be limited to cosmetics.