Changes his opinion ? when did he change his opinion regarding phantom > vandal , he's been saying this since pax arena and hasn't changed his mind , he's also hasn't changed his mind regarding classic>ghost ever since he's made up his opinion about that when did he change his opinion lol? and there are plenty of arguments he's made that he then plays to prove on stream as to why that is true. And no he does use both phantom and vandal , highlight clips are just one of reasons that he stated in one of his popular clips , he doesn't just use it for highlight , he also uses it for comfort , for a person like him it's much easier to just take aim duels and win them with a gun that does more damage per bullet at every range even though it has so many more disadvantages , he's himself admitted that he keeps going back to the vandal because of comfort and that it 'feels' better and is more enjoyable , not because he thinks it's better.
"u dont realize but he always does the opposite to what he says on the streams in official matches"
again objectively wrong he does a mix of things , even in masters in the first match he used mostly phantom. in haven ,and also used phantom quite a few times in the game against nuturn as well as vikings . He uses both the guns , he just uses the vandal more because of the comfort he has taking aim duels. This same concept applies to the ghost vs classic , where someone like him is much more like to just one tap a person with a ghost taking an aim duel and not care about anything else.When he is giving advice , he's not going to think that every person is an insane aimer , which is why his advice is even better .
Don't make up bs and skew facts to support your argument , yes he is hypocritical in the sense that he does the opposite of what he tells his stream to do (not always either, which you said he does , and it couldn't be far from the truth), but that's because it's objectively the better option , him using it doesn't really mean that it's the better option or he thinks it's the better option and hence uses it.
And we can have a debate any day as to why phantom is definitely better than the vandal overall as a gun , just because vandal is better in few instances doesn't negate the plethora of disadvantages it has compared to phantom (mostly at the pro level).