"Full-time paid position" was advertised as many times people say/advertise that co-founder would receive substantial equity but would have to work without any

"Full-time paid position" was advertised as many times people say/advertise that co-founder would receive substantial equity but would have to work without any financial remuneration for some time. It is not like this here. You might be a co-founer but equity in a startup would not pay your bills, right?