The mobile store section runs from page 93 to 100 and the mobile OS section runs from 100 to 106.
Generally speaking, it's not focused on consumer related issues beyond claiming that there are "high costs to switching" for mobile users and that mobile users don't often switch between platforms. Personally, I would question the "high costs to switching" part since phones are not generally more expensive than desktops/laptops and the software involved with mobile is definitely cheaper. Like I've mentioned, they don't try to do any comparisons for standard consumer issues like price, quality, selection and satisfaction.
They also don't really praise Google/Android as being any better than Apple/iOS when it comes to the mobile stores or operating systems. The report includes this section:
"Similarly, the ability for consumers to sideload apps—installing apps without using an app store—does not discipline the dominance of Apple and Google in the mobile app store market. Apple does not permit users to sideload apps on iOS devices, and few consumers have the technical savvy to “jailbreak” an iOS device to sideload apps.514 Google does permit sideloading on Android devices, but developers find that given the option, consumers prefer to install apps from app stores and few opt for sideloading.515 Google has created significant friction for sideloading apps to Android devices. One developer explained to Subcommittee staff that sideloading entails a complicated twenty-step process, and users encounter multiple security warnings designed to discourage sideloading.516 Additionally, software developers that have left the Play Store to distribute software to Android users via sideloading have experienced precipitous declines in downloads and revenue and report problems updating their apps.517
Thus, the option for sideloading apps on mobile devices does not discipline the market power of dominant app stores."