I have had multiple courses in C from different institutions but I kind of get the feeling that all the instructors are academics who have not built big productions in C . I would mention something I learned in-class to people I know and they will tell me that is not the way that people actually do it in industry (e.g. do not use pointers, do not write "using namespace std"). I would also search up things I learned and read other people's code and they would use syntax that I have never seen. The instructors would actually not be happy if you used a more advanced technique you found online and would sometimes take away marks. I feel like C probably has built-in tools that make it more powerful than I have been taught (like auto?) like how in Python I know that there is a "Pythonic" way of programming that fully utilizes all of Python's power and potential, otherwise you are doing it wrong

I am interested in resources that only talk about these modern and practical tools and heuristics and not just a tutorial that goes over all of C from the beginning

Thanks!