Here's the quote from the [actual whitepaper](https://envoy.com/wp-content/uploads/2023/08/Workplace_Data_...) from Envoy that this article references:
> 80% of executives say they would have approached their company’s return-to-office strategy differently if they had access to workplace data to inform their decision-making.
Envoy's not exactly an unbiased source here, since they sell software to collect this data.