Exchange Admin Calendar Permissions. To see what permissions you need, see the permissions in exchange online topic. There is no centralized way to manage calendar permissions in office 365.
There are several cmdlets in powershell to manage permissions for. Users must individually grant appropriate calendar permissions to other users from outlook.
To See What Permissions You Need, See The Permissions In Exchange Online Topic.
Powershell is often a more efficient and convenient way to perform tasks, especially when making multiple or frequent changes.
Adding Calendar Permissions In Office 365 For Your Users Via Powershell.
Open your outlook, select your calendar, and click calendar permissions.
Add Calendar Permissions In Office 365 With Windows Powershell.
Images References :
To See What Permissions You Need, See The Permissions In Exchange Online Topic.
Also, there is no way.
Exchange Online In Microsoft 365 And Office 365 Includes A Large Set Of Predefined Permissions, Based On The Role Based Access Control (Rbac) Permissions Model, Which You Can Use Right Away To.
If you have the correct powershell commands, you can.
Based On Your Mentioned Description, Generally To Delegate Access For Calendar To Other User, It Will Be Delegated From Outlook Desktop Application Or Outlook.