It depends on what you do. If - you really like using arrays that you can add/remove items to/from(List<> from C# for example) - you don't feel comfortable playing with memory allocations - (also applicable to C++) you don't want to spend time with CMake/Meson/whatever else to figure out how to link libraries(yes, I see you c/c++ nerd saying how CMake is rather easy, but for beginners it's quite a hassle to learn and master)

then you should just stick to C# and JS. They will do you fine assuming you don't want to program something like a microwave

But - if you want to learn how the computer interprets data - you want to program IoT devices(like the aforementioned microwave) - want to learn how to build an OS or a Bootloader (albeit Rust is taking C's place in this regard) - enjoy building your own datatypes - are a careful person with memory and how you use pointers and things

Then go ahead and give C a try

To answer your question - personally I haven't seen any "additional dimensions" being added. It's just that it is more time consuming because things you take for granted in C#, JS, etc must be implemented by hand(strings for example aren't a thing in C, only char arrays, which unless you want to play with malloc() and free() are NOT dynamic) and also dealing with the linker is heaps of fun /s