To me, an iconic berzerker is the Celtic warrior "skyclad" with an axe in each hand.
As I understand it, since Frenzy gives an additional attack as a bonus action, it clashes with Two Weapon Fighting, and thus you don't get full advantage of the offhand weapon.
Is that right, are people okay with that? If not, are there potential fixes?
Right now the fix would be go totem or have your DM house rule a change for a fix of some type if you want Berserk path but yes Dual weapon gets hurt with that build