We just use Google Calendars embedded in Confluence pages.
We don't have confidential info, so we have no problem with storing it at Google. (I don't know if it is possible to embed Google Calendars in Confluence Cloud, but it is definitely possible in Confluence Server and Data Center).
Now that Team Calendars becomes a Confluence Premium feature with a hefty price increase, I suggest you look at Outlook Calendar if you're using Microsoft 365 already (we are for e-mails, and moved to Teams after Atlassian closed down HipChat). Every group gets a group calendar with basically all the features of Team Calendars plus everything that a full-blown calendar app provides, minus the JIRA integration (but that's not something we have used anyway).
Hi Community! We're thrilled to share that Team Calendars for Confluence is now a built-in feature for Confluence Data Center releases 7.11 and beyond. A long time favorite, Team Cale...
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