Hi,
I am in a similar situation. Running Enfold 5.6.3 on WordPress 6.3.2.
The Theme Update pages gives the following information: No Updates available. You are running the latest version! (5.6.3)..
Check manually gives no further advice, on how to upgrade to Enfold 5.6.8 (which I believe is the currently newest version).

Must I do a manual upgrade?

Thank you.