why pop_back just removes the last element

Question

Generally to get the last element and remove it I have to use stl::back and then the stl::pop_back

#include <iostream>
#include <vector>

int main()
{
    // Create a vector containing integers
    std::vector<int> v = {7, 5, 16, 8};

    // Add two more integers to vector
    auto x= v.back();
    v.pop_back();

    std::cout<<"last value removed was"<<x<<"\n";
    // Iterate and print values of vector
    for(int n : v) {
        std::cout << n << '\n';
    }
}

Is there a way or any other stl by which I can use the pop_back() returns the last element and then remove .Just use a single stl

why is pop_back() just implemented to remove it would have been better if it could return as well .Any reason it is implemented just to remove