The EU website has a handy list of what it's going to do, since the article doesn't really address this:
Examples of the “do’s”: gatekeepers will for example have to:
Examples of the “do’s”: gatekeepers will for example have to:
- allow third parties to inter-operate with the gatekeeper’s own services in certain specific situations;
- allow their business users to access the data that they generate in their use of the gatekeeper’s platform;
- provide companies advertising on their platform with the tools and information necessary for advertisers and publishers to carry out their own independent verification of their advertisements hosted by the gatekeeper;
- allow their business users to promote their offer and conclude contracts with their customers outside the gatekeeper’s platform.
- treat services and products offered by the gatekeeper itself more favourably in ranking than similar services or products offered by third parties on the gatekeeper's platform;
- prevent consumers from linking up to businesses outside their platforms;
- prevent users from un-installing any pre-installed software or app if they wish so;
- track end users outside of the gatekeepers' core platform service for the purpose of targeted advertising, without effective consent having been granted.