Besides demanding that Apple allow sideloading on the iPhone in their country, Japanese regulators also want both companies to allow users to make in-app payments through third-party platforms. Currently, Apple and Google both demand that these transactions go through their own in-app payment platforms which allows the two tech giants to take as much as a 30% cut.
The Japanese government could force Apple to allow sideloading on the iPhone in the country
Apple CEO Tim Cook has always noted that by preventing sideloading on the iPhone, the latter is more secure since Apple has to approve all apps that are downloaded on the device. But to give credit where credit is due, the Japanese regulations will demand that iPhone and Android users be allowed to download apps from third-party app stores but only if those app stores have enough privacy and security protection.
The Japanese regulators would also like to see iPhone and Android users be able to easily delete some pre-installed apps that the manufacturers load on their own devices. And they want Apple and Google to stop giving preferential treatment to their own services when it comes to search results. This probably includes search results for apps in the App Store since Apple currently does not have a search engine.