What they learn first: Your social connections
Instagram’s onboarding is clearly focused on one metric – getting you to see content from people you know, which is why their first priority is connecting you with others.
Where there’s friction: Accessing contacts. Unless the user allows access, the rest on the onboarding process has more friction – Instagram then has to match you to accounts based on interest, or you have to do the rest of the work yourself. The potential for dropout is much higher.
Business cost: The business cost is actually not as high – those who get that app with the intention to stay on it – will stay.
Notion
What they learn first: How you plan to use it (personal, team, school)
Notion guides users through a brief survey to personalize the workspace according to each user’s specific needs, then provides curated templates matching their use case.
The friction point: The lengthy questionnaire and profile setup.
Business cost: High complexity tolerance. Notion users come with intent to replace existing tools, so they’ll endure more upfront friction. 
Venmo
What they learn first: Your bank account details and identity verification
The friction point: Bank verification and identity checks.
Business cost: The onboarding process can be extremely costly if not handled properly. Especially in the finance space, there are a lot of alternatives users can turn to such as Zelle.
