Dricus is unusual in that he's still based in South Africa, so it probably makes little difference to him where he fights. If he goes to Australia to fight Izzy, fair play. But they aren't running a show in South Africa anytime soon, so I guess, whatever.
Conor doesn't usually train in Ireland, or Iceland for that matter. Kavanagh goes where he's told. Abu Dhabi, California, wherever, so it makes no difference to him where he fights.
Islam will be training at American Kickboxing Academy as normal for his US-based fights.
All I'm saying here is that Alex Pereira isn't based in Abu Dhabi, doesn't have pre-existing ties to Abu Dhabi, and would be making a pretty big concession if he decided to fight in Abu Dhabi.
For what it's worth, Pereira is targeting Madison Square Garden in November. He'll probably fight before that, if the UFC pay him, but most likely in the USA. I can't see any way he fights in Abu Dhabi in 2024. He won't be on a Fight Night, and as the UFC 300 headliner, MSG is very likely.