Outside of the embedded world, what makes Modern C better than Modern C++?

I am familiar with Modern C++ and C99.

After many years of experience I see languages as different cultures other than just tools.

Some people have personal preferences that may differ considerably such as two smart and capable engineers. In many cases there is no right or wrong but a collection of tradeoffs.

Now, given this introduction, I would like to know what do you think Modern C gets right and what Modern C++ gets wrong.