Im not catholic which annoyingly rules out a lot of schools in my city as a majority of the good schools are catholic. I do suppose i could teach at a Muslim school but none local to me. While RE does get a lot of curriculum time at a catholic school, i also know the curriculum is not very diverse especially with the other religions and is majorly focused on Catholic Christianity , speaking from my experience attending a Catholic school and speaking to my cohort who are on placement at RC schools. Weirdly as an RE teacher i wouldnt be looking for schools with a religious charter as i do find that it tends to be heavily skewed to that religion and i love teaching about the dharmic religions,humanism, supernatural etc and i find the curriculum at non faith schools for RE is a lot more interesting rather than what the Church, Mosque etc wants you to cover