Prop drilling is the unofficial term for passing data through several nested children components, in a bid to deliver this data to a deeply-nested component. The problem with this approach is that most of the components through which this data is passed have no actual need for this data.

for more information check this : What is prop drilling,?

Props drilling is the process of passing data or props from a parent component to a child component. But, in between, other components have access to the data or props as we are passing it down the chain. This would result in unnecessary exchange of data to the component which don't really need it. To avoid this we can use possible solutions like React context API, Redux etc.