First follow these steps through this link if you haven't already: https://washjeff.happyfox.com/kb/article/99-zoom-signing-in-to-zoom/

1. Go to Meetings in Zoom
2. Click Connect calendar, click Connect next to Microsoft 365
3. Under Select a Service choose Microsoft 365 then Next
4. Click Authorize
5. You will now be able to add meetings in the Zoom calendar and they will be shown on your Outlook calendar as well!