digital hermit 

a person who avoids using modern technologies like e-mail or the Internet

El does not own a smart phone - he is a digital hermit

digital hermit by C-Fen June 9, 2018

Digital Hermit 

someone who exists in the digital world, freelancing to forage for sustenance and meanders around the real world scrounging for good Wi-Fi and coffee

Mathew has properly become a digital hermit since the pandemic

Digital Hermit by Poetinreminiscence October 20, 2022