What is the difference between Square d qo vs hom type breakers?

The home type used to be a little less expensive, and they do not have the little red flag when the breaker trips, The qo has the little red flag, which is eaiser to see, which breaker is tripped when you open the panel door the little red flag you can see where with the home style you look for the breaker that is not completly on. To me it was a step backwards with the introduction of the home style breaker we have installed both panels and Q O I prefer. And the breakers are not interchanable from panel to panel