I think it's a bit understated how bad of a matchup Khamzat is for Dricus.
Dricus says himself that he's not the best wrestler, grappler, or striker, but that he's the best at mixing everything together in an MMA-fight.
His offensive wrestling will likely not be a factor at all in this fight, which is something that he used well vs Till, Izzy, Strickland.
His style of striking can also be more "wild" because he doesn't fear getting taken down, blitzes, high kicks, throwing punches off balance, will be a bit more difficult to get away with vs a takedown threat, who very likely can be able to control him once he gets taken down.
Relying on his physicality and granite chin to get his own offense in is also more dangerous vs someone with just as much power as him than vs Rob, Till, or Strickland.
Just as we have seen Khamzat make mistakes vs Burns in the striking, we've seen Dricus make mistakes in grappling vs Brunson and Till.
This fight has less room for errors for the both of them, as it should be in a title-fight.