A true Mac-exclusive driver would:
For macOS Catalina (10.15), users have found that downloading the Universal Driver
Assumption: printer is functional and connected via USB.
Type "ML-2020" or "ML-2240" in the search box. Select one of these if the 2010 driver is missing; they share the same printer language. Why Keep the ML-2010?
Apple provides a "legacy" driver bundle called Samsung Printer Drivers v2.6 for OS X . While it’s older, it contains the necessary PPD (PostScript Printer Description) files that can often be "forced" to work on later versions of macOS by using a tool like Pacifist to extract and install the package.