Can I connect a Apple USB SuperDrive to my MacBook Pro M1 2020?

yes, you can use the superdrive with an M1 Mac. but it will not work if you try to connect it through a dock or hub. it MUST be connected directly to the Mac. and since the superdrive has an USB connector and the MBP only has USB-C port, you will need to use an USB-C to USB Adapter to connect it directly.

you need an adapter that has the MALE USB-C end that plugs into the Mac, and a FEMALE USB-A end that you plug the superdrive into.

that's the main point of using an adapter rather than a hub. to ensure the superdrive has enough power.