I have seen flip phones. I’m sure they do. But they dont push them because the sales people make more commission from new equipment.
I had a flip phone-it was 3g-didn’t have a lot of bells and whistles. They discontinued service in dec 2020.
The new flip is a 4g, and it has a lot of bells and whistles. Too smart for me. However, it does have the Presidential Alert which the old one did not. I expect it also has all the bugging crap. I know it has a road map feature, which I have not tried to figure out.