You can read more about it here, we only get the so called "core usage data" and it was enabled by default for me after upgrading the unity version, nothing about behavioral data or onboarding, and since we don't monetize within the game in any sort of way with adds or micro transactions that whole component does nothing.
You can also see there screenshots of how the charts kinda look for me when i check the analytics, its super basic
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"Core usage data
When you enable Analytics, Unity tracks core usage metrics on supported platforms without any effort or implementation on your part. These core metrics include:
- New installs
- Daily active users (DAU)
- Monthly active users (MAU)
- Total sessions
- Sessions per user
- Time spent in app
- User Segments for Country and Platform
These are all good metrics to use to monitor the health of your game. They tell you how many people are installing your game, how often they play, and how long they stick with it. Many external factors also influence these numbers, but you should watch them for signs of problems that you can correct."