Agree with
@RayanOO's points except Kaido and Dragon > Mihawk. Still not sure about that, tbh
Just want to add one thing:
Roger not finding Wano's case was from 25+ years ago. A lot of things could happen since then.
Aside from famous name mentioned above, even rookie Ace could find Wano before he joined WBP.
So, it is not really a good excuse for Mihawk not finding Wano
Not invading Wano because Kaido ruled it and no one can topple him was an pretty good argument, though.
The only concern is if Mihawk want to face Oldbeard to see the gap between him and Oldbeard eventhough Oldbeard wasn't a swordsman, why not try to challenge Kaido who hold the WSC title then?