Google Assistant's app integration is going to get better with Android 8.0 Oreo, as it looks like Google is prepping the software to where app developers will be able to make better use of it in a number of ways. Google seems to be setting up a new integration that will work with other digital assistants beyond Google Assistant, such as Amazon’s Alexa app or Microsoft’s Cortana app.
As of right now, this functionality is not something users can readily access, but it is on the way. A new string found within the Android Developers website code listed as startVoiceActivity describes the capability for an interaction to be started by voice so long as the application supports Android 8.0 Oreo. Not only will users need to be on a device running on Oreo, but the app itself will also have to support Oreo for developers to make use of the function, which means depending on when Google rolls this out and makes it possible for developers to start adding this integration, the list of supported apps might be small. (for now at least)
The fact that Google seems to be opening this new activity up to other digital assistants might also suggest that Google really wants developers to make use of the functionality, though it will surely also bolster Google Assistant too. Those who use Google Assistant on a daily basis may want to keep an eye out for new integration from their favourite apps, as the functionality may show up sooner rather than later.