Access MS Graph Shared Calendars with a console application ?

I'm trying to acces the calendars that have been shared with a user using MS Graph sdk. I have a web app and the necessary permissions like Calendars.Read given. Using postman I manage to read the calendar of a user using https://login.microsoftonline.com/{app id}/oauth2/v2.0/authorize for authorization and then https://graph.microsoft.com/v1.0/users/{user}/calendar/events for reading calendar events. Everything works fine in postman, but I'm having issues to do the same thing using MSGraph framework. I tried using this example https://learn.microsoft.com/en-us/graph/sdks/choose-authentication-providers?tabs=CS#client-credentials-provider in order to replicate the postman calls in c# but I receive an error saying that

'Code: BadRequest /me request is only valid with delegated authentication flow'

when I used await graphClient.Me.Calendars.Request().GetAsync();

and

Access is denied. Check credentials and try again

when I used await graphClient.Users["example@ssss .com"].Calendars.Request().GetAsync();

From what I have read the first error with delegated authentication flow appears because I'm using application permissions model and I should be using delegated permissions in this context. The issue is that I don't know how to use ms graph library for delegated permissions model. The only examples that I found involves calling API directly, but I need to use the MS Graph library.