You can give hiring managers access to onboarding tasks by updating their permissions in Admin View. Here's how to do it
In Admin View, go to Access Control › Users.
Select the three-dot menu ••• next to the name of the hiring manager.
Select Edit user.
Switch to the Permissions tab.
Scroll to the Team management section and check Manage onboarding.
Note: This will automatically select all options under this checkbox. You can adjust the access based on what you want the hiring manager to do in Onboarding.
Once done, Click on Save.