Dear Joey,
Google Calendar does not update imported .ics files very frequently, and it may take up to 24 hours for changes to appear. This is a limitation of Google Calendar and not Outlook. One possible workaround is to use Outlook’s feature to see your Google Calendar in Outlook (https://support.microsoft.com/en-us/office/see-...), which may allow you to view both calendars more easily. Alternatively, you can try using a third-party app or service that can sync Outlook and Google calendars more reliably (like Zapier or SyncGene to automate the syncing process).
Best Regards,
George A.