Hi Lee,
Thank you for posting your query in our community.
Per your description, you mentioned "the sum/average/count are still not showing in status bar" at the beginning, however, you also mentioned "I couldn't find the status bar option", may I confirm that whether you mean that the Status Bar missing on your side?
If yes, I found a thread which has the similar issue with you, you can try the methods in this thread which helped many users to see the result: Status bar missing in Excel 2016