I have not been able to receive notifications on my Desktop.

Even if you allow notifications on your desktop from your talk calendar settings, you will not be able to receive notifications if you are blocking notifications on your talk calendar site from your browser settings.
Please allow the notification authority of the Kakao calendar from the following menu in each browser.

- Chrome Browser: Settings> Privacy & Security> Site Settings> "Permissions" Notifications> Add
Kakao Calendar (calendar.kakao.com) to the "Allow Notifications" group
- Edge Browser: Settings> Cookies and Site Permissions> Notifications> Add
Kakao Calendar (calendar.kakao.com) to Allowed Groups
-
Safari browser: Setting > Website > Notification > Enable the button on the right side of Kakao Calendar (calendar.kakao.com)