Polearm master feat grants a bonus action attack when wielding a polearm. This is pretty nifty at low levels when extra attacks are hard to come by (but its useless to monks, since they get a bonus action attack for just being a monk).
Monks dont use Polearms ...
Since in order to have acess to martial arts, they cant use Two-Handed weapons ...
Not sure about Flury of Blows tho ... there is nothing written there.
UNLESS!
Larian would implement Dedicated Weapon ... that would be quite game changing for Monks!
