Well, he's 38 in what has historically been a trash division in the UFC. That a few of these guys gave the "I go to cocaine parties and don't train" version of Jones some problems is the only reason anyone in LH is considered legitimate. LH is basically a bag of journeymen that Jan rose to the top of. I don't think he'll lay a glove on Izzy. Big power sure, but I don't think he's as good a striker as Whitaker or Paola is and both were pretty ineffective at getting anywhere close to touching Izzy.
When LH was actually good (prime jones, DC, Gustafsson, Glover, Rumble, Manuwa, etc all in their together), Jan was in his prime and a journeyman at best in it (in fairness, it was a fucking murderers row 2014-16).
Izzy is a guy with GOAT mma striking skills facing a journeyman with a belt.