Two Factor Login-No Cellphone

First I got the 'Not Compatible' message on my Samsung tablet. After poking around, I uninstalled and reinstalled from Play Store. Went to log in and Roku demanded I set up a two factor login. Then it said I had to put in my mobile phone number (no other option). I don't have a  mobile phone. So I guess my Roku cameras are now more worthless than they were before. Oh well, I'll just have to get by with my Wyze cameras. At least I'll have more memory available now.