I think it is hair mixed with soap. Try this hair snare:
25 Inch Sink Snake Drain Clog Remover Tool,6 Pack Drain Cleaner Hair Clog Remover Tool, Drain Hair Remover Plumbers Snake, Drain Cleaner Sticks, Easy and Quick Unclog Sink Drain, Kitchen, Shower, tub.
https://a.co/d/jbTTZjL