Mac doesn't recognize superdrive

Welcome!

1) The SuperDrive will not show up on the desktop until it has a valid disk in it.

2) The Superdrive must be connected directly to the computer, not to a hub or docking station. Se the "fine print" in this support document: How to connect the Apple USB SuperDrive - Apple Support

3) If you need a port adapter for USB-C, many reports here say only the Apple adapters work properly. Those three adapters are listed in the above article.

4) Please excuse me if this question seems too simple, but it addresses the leading cause of SuperDrive problems here. Is the silver side up?

Apologies for the delayed response. I am traveling and checking in when I can.

Do you have access to a different Mac for testing the SD?

On the Mini, does the SD show in System Information?

You can access SI from the "overview screen of "About this Mac..." by clicking the "System Report..." button. The SD should show up on the USB section of the left-hand contents pane.