I think anyone in the role of Vice President, such as Kamala Harris has little chance to shine, and none of them have. That role has been designed to shadow the President and stay in the shadows until they get their chance to run for President.
Kamala Harris is the first female Vice President in the US. I have always said the only way a woman has a chance of ever becoming President of the US (a supremely mysogynistic country) is if the male President she serves becomes incapacitated and she takes his place.
Though I do not wish it, perhaps fate has this in store for our country. I believe Kamala Harris would make an excellent President as good and probably better than many of the rest.