The Cohhilition

Okay okay friendos, so I've watched the entire Yakuza 0 playthrough as well as Kiwami 1-2 but I can't figure out if Cohh played any of the other games like yakuza 3-4-5 before he did Yakuza: Like a dragon. I'm fine with going straight into Yakuza 6 if Cohh never played the other ones but I don't want to miss anything he played. Pls help, much love

If you go to his Youtube mainpage he has a link to all the games 0 - Like a Dragon. Just scroll down and you'll see his playlists are all lined up in a category for themselves.