EU officials have told Apple to also authorize alternative marketplaces on the iPad, in a new European Commission decision that also categorizes Apple’s iPadOS operating system as a “gatekeeper” technology. Apple now has six months to implement the far-reaching rules of the European Union’s Digital Markets Act. The decision comes after the EU previously forced Apple to allow rivals to the App Store on iPhones in Europe. Similar to the iPhone, the US company must let users install alternative app stores for the iPad in the EU. In addition, the iPadOS tablet operating system must also support br…