63% of registered voters said Harris won the debate. Even 31% of Trump supporters said Harris won the debate.
Harris' favorability increased 6 points.
Trump's favorability declined 2 points.
4% said the debate changed their mind about who to vote for. 14% said it made them reconsider, but not change mind. This is identical to what people said after Biden's debate.
Don't expect a lot of movement - Biden's disastrous debate hardly changed polling - but she doesn't need much in a close election.