Very few people are using C for `quality-of-life features`. I'm fairly certain I've never even seen any C23 code, is it supported by many compilers or C tooling? One of the great things about C is that it is fairly easy to write code that runs everywhere and for a library that is especially important. There are many who just stick to C89.
The quality of life is “it compiles nearly everywhere with the first toolchain you can get your hands on”.
As usual, clang and gcc have great support, intel ok, msvc no.
C11 is probably the newest that’s widely adopted.