I'm not sure if this has been mentioned but, with the new unarmed fighting style that Fighters get, a monk's unarmed damage scales too slowly. It seems to encourage a 1 level Fighter dip or a feat to get that fighting style to get a 1d8 unarmed damage at 1st. A monk starts at a d4. It's really pathetic. I think a Monk should start at a d6 get a d8 damage much sooner and they should cap out at a 2d10 at 20th.
That said, I find a Way of the Fist Monk to be an encounter killer with the ability to Stun Lock a boss. And their movement is insane if paired up with mobility which allows them to save Ki points in order to move in and out of combat without provoking attacks of opportunity. I'm not sure how the other archetypes do at higher levels but, in my experience, Way of the Fist is pretty strong.