Compare the amount of equipment that was designed specifically for monks to the amount of equipment designed specifically for druids.
It is pretty obvious one class got a lot more love than the other (with the outcome that monks are OP af).
However I play a multiclass moon druid spellcaster and they can pretty much do everything other spellcasters can, with an added feature that they can quickly transform if something comes in melee range that they need to deal with or get away from. They aren't optimal, but still functional and useful.
