Calendars for Resource Mailboxes Display the Organizer’s Name Instead of the Exchange Server Subject in the Event Context

Why is this happening?

This is the default behavior. It occurs because two configuration parameters, AddOrganizerToSubject and DeleteSubject are set to $True.

How to fix it?
To resolve this issue, please follow these steps, refer to:
https://docs.microsoft.com/zh-cn/exchange/troubleshoot/client-connectivity/calendar-shows-organizer-name#resolution

Note: As to how to open the Exchange Management Shell, please refer to:
https://docs.microsoft.com/en-us/powershell/exchange/open-the-exchange-management-shell?view=exchange-ps