“there is not a thing that comes to mind”

Of course she differs from Biden in a number of ways, as the article itself points out, e.g.,

issues like housing costs and price gouging

but by saying the first quote, she’s trying to retain voters who like Biden - while knowing that those who e.g. dislike Biden on housing costs will remember the difference and still give her their vote too.

And she also said,

“we’re also different people and I will bring those sensibilities to how I lead.”

Which is very vague - but for folks who are more dissatisfied generally with Biden, they might creatively interpret the above as Harris including them under her platform’s umbrella.

So basically this is a politician trying to win over as many folks as possible from as broad a coalition as possible.