He might just think of how good is he even if he didn't do something about his weight, The dude still has the power to knockout heavyweights and that's all he needs since he already proved it against Wilder thrice. Now that he looks heavier than before, I don't think he will be that serious when he fights Ngannou because he is full of himself and thinks the guy is an easy fight. well! we can't really understand how Fury thinks since he always finds his way to win every fight. let's just see how will it turn out this time.
I wouldn't say that he won't be serious with Ngannou and take it as an easy fight. You have to keep in mind that fighters experience the most psychological pressure when they fight easy opponents because if they lose, it will be a huge shame for them. When opponent is tough, then lose is okay because you can easily say he is one of the greatest. But easy opponent? Hell no!
We can also say that he was just being on himself, just like Nikola Jokic of the Denver Nuggets. The man doesn't really care about the training and everything that involves physical preparation because he also loved to eat unhealthy foods including softdrinks but still, at the end of the day, the man still wins and others cannot even do anything about it even if they will pour every seconds of their time to prepare against him and his team.
He is just a pure talent. There are people who are talented, like Vitalik Buterin. You can sit and study for hours and hours absolutely every day but you can't beat Vitalik Buterin intellectually. This is just an example from our lovely crypto world
Well, after the fight he will likely do and eat a burger for sure just like what he did with his fight with Dillian Whyte he also gave Dillian Whyte a burger which Whyte said he couldn't eat because he got bad teeth that were destroyed during the fight so for sure it was a terrible idea for Tyson Fury in getting Whyte to eat his favorite, but for sure it was how Tyson Fury just do things he will likely train hard but his body fat is still likely there, well I don't really want to body shame at all that is why,
You don't really need big muscles during fight because they make you slow and consume a lot of energy. While it's also true that you don't need fat either, Tyson Fury is an exception, he does fantastically well even with chubby body.
And it's not body shaming at all, it's just true and even he says that about himself. I think I agree with Jordan Peterson.