He’s the same but unfiltered. Which you can argue is a change, but the underlying personality and (complete lack of) values are the same. He’s always turned on sycophants for the slightest reason, he’s always ranted delusionally, he’s always been a narcissist who cares about petty and meaningless awards, he’s always been a corrupt grifter, he’s always full of threats and bravado who chafes at any restrictions on his impulses, he’s always been a shitty deal maker whose only tactic is escalation and starts out so aggressive he doesn’t leave himself any room to negotiate, he’s always been racist and misogynistic, he’s always been stupid, ignorant, and incurious but still believes he’s smarter and more knowledgeable than anyone else.

None of those qualities changed. The only things that have changed are:

• His dementia has gotten worse and his grasp on reality has weakened.
• He’s now completely surrounded by sycophantic yes men who won’t question or push back on his worst impulses.
• He’s faced so few consequences for his craziest impulses and corruption that he no longer feels any constraint, which is exacerbated by the previous two points.