The data provisions in the EU's upcoming Big Tech law

"Most of the studies leading up to the DMA recognize that gatekeepers' privileged access to data is a key reason why they have entrenched market power. There are legitimate concerns, too, that gatekeepers are withholding information from their business users to keep the market opaque," Zach Meyers, a research fellow at the Centre for European Reform, said.

..."This could be useful so that a business user could move to a competing platform without losing all the data they accumulated on their previous platform," CER's Meyers said. That would be the case for business reviews that could be easily moved onto a competing platform without a business user needing to build a new profile and reputation from scratch.