The (current) top comment on Youtube answers your question. Might have slight game spoilers so I’m gonna tag it just in case someone wants to go in fully blind.
spoiler“Ok, this class. Is DLC only atm unless you beat the game with a specific ending and then can pick after that. It’s a pretty strong class. Good armor, stats and weapon. Ranged is kind of borked and slow, but gets the job done. Here’s you easy mode class to start the game if you want it. If you guys want to see other classes let me know. I’ll try to get them up as I play through the game. Enjoy!”
I haven’t super kept up with this game though, so I’m also quite curious what the point even is. From what I understood “classes” in this game are the same as in Dark Souls/Elden Ring. They define your starting stats and equipment but don’t give you any special bonuses beyond that, so making a class-gameplay-trailer feels weird to me. Maybe I misunderstood something though.