Web legacy export feature missing in Photoshop for M1 Macs missing

I just moved to an M1 mac, and the photoshop version lost the option to save out jpegs in Web Legacy with the slider optimization (1-100) quality. Instead there is now a dropdown with 7 quality options from "Very Poor" - "Very Good". With the dropdown, my saved jpegs are either too large or bad quality.The idtem used to be offered in the Photoshop preferences > export tab > Under the "Export as Location" section (see attached) now it isn' there. Has anyone else experienced this and have a hack for getting the slider back?