I don't have that iMac, but when you got the OWC drive, did you get the Roxio Toast software with it? Did you insert it to see if it comes up with its installer?
Macs have never had a "driver" for burner/players. When you plug it in, it will not show on the desktop........BUT, when you insert a CD or DVD, it will show that icon on the desktop. To play, click the icon and DVD player should show up or use VLC which will play everything. To burn, use Toast.
You should also read the info here:
Is SuperDrive compatible with M1? - Apple Community
Also see the info here:
https://eshop.macsales.com/item/OWC/MR3USD24/#compatibility
And, Roxio Toast:
https://www.roxio.com/en/products/toast/?x-vehicle=ppc&gclid=EAIaIQobChMIuIXh87iM_QIVxzWtBh2csgfpEAAYASAAEgLU-vD_BwE#tech-specs