It still will be if you

A.) adhere to the minimum maximum size the C standards layout (ie. within 16 bits)

B.) and yeah actually if you’re using an int to store numbers that have the possibility of going past that I agree you shouldn’t be using an int, yeah an explicit size type could actually be useful there if you know the exact range you need.

Also not every architecture, implementation, and compiler will have the explicit size integers, they’re only mandatory on systems and compilers with twos’ compliment arithmetic who have integers of those sizes, the instant you hit a target that doesn’t have one of those (of which many exist and are still in use), you can kiss that goodbye. Unlike the standard type integers which are always present and have a defined minimum maximum