Thankfully, I purchased just weeks before COVID hit the US and rentals went through the roof. But if I were renting the same place today, it would be 65% of net income NOT including any utilities. At the time, it was 48%. It's crazy. (Now I pay 40%.)
I work in housing and HUD uses the 30-35% estimate for housing (which includes utility allowances!). It's not even close to reality for many people right now. Of course, they go by gross income.